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Expanding Materials and Connector Testing

One of the capabilities we will be expanding at our new North Annex is our Materials and Fatigue Testing services. Physically, the new Materials Lab will grow from 250 sq ft to more than 800 sq ft of temperature- and humidity-controlled space. This new space will be home to our existing servo-hydraulic and electro-mechanical load frames capable of both cyclic and non-cyclic tension, compression, bending, and flexure force applications on a wide variety of materials and products. New to the lab will be a larger Charpy Impact test system capable of producing high-impact energies necessary for the evaluation of metals, which will complement our current system designed for testing plastics.

We have experience with a broad range of material testing projects but have developed a particular specialty for evaluating electrical cables and connectors in accordance with USCAR2, GMW 3172, EIA-364, and many other specifications. Our specialized cable/connector test setups provide all the necessary mechanical, environmental, electrical, and RF testing in one location to ensure repeatable results and timely completion.

Combined with our new in-house machining, fabrication, and automation capabilities at the new North Annex, our expanded Materials Lab is the complete source for reliable product life testing customized for your products. Stay tuned next month for more on our new machining and fabrication capabilities that will help accelerate your Environmental Stress and Materials Testing projects at Elite.

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Elite is Adding Staff to Deliver Quick Access

Within the past 12 months, Elite has added 12 new employees to our staff. We’re also expanding into 15,000 sq ft of new lab space. The purpose of this significant ramp-up is in response to the needs of our customers who have asked us to provide quick access to our resources and prompt test completion with the highest quality standards.

Elite continues to be a leader in EMC and Environmental Testing with more EMC engineers and more highly-qualified staff than any other testing service provider. Did you know we have 34 full-time EMC test engineers available to run testing each and every day?

To illustrate how Elite is working to keep schedule backlogs low, here are a few stats on our recent staff hiring:

  • Recent Hires (within the past 12 months)
    • EMC test engineers:  7
    • ENV test engineers:  3
    • Support engineers:  2

Elite’s Total Employee Resources Available

  • Total Employees:  74
  • EMC Testing Department
    • Total EMC Test Engineers:  34
    • Total EMC Sr. Support Engineers:  10
    • Total Employees having iNarte Certification:  20
    • iNarte Certified Organization
  • Environmental Testing Department
    • Total ENV Test Engineers:  10
    • Total ENV Sr. Support Engineers: 5

Elite Electronic Engineering is committed to our vision of being the most trusted and capable engineering laboratory in the world. We’re working now and always to maintain our brand promise of providing technical expertise, scheduling flexibility to meet customer needs, and overall best value of services. 

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Advantages of Professional Society Membership

Coming up on March 16, Elite will be hosting a free technical meeting focused on portable electronic devices used on board commercial aircraft. We will discuss the technical perspective of why portable electronic devices must be turned off or placed into “airplane mode.” The presentation will be one of the most interesting of the year and based on similar meetings in the past, it will also be very well attended. 

This particular meeting is jointly hosted by the Society of Automotive Engineers (SAE) Chicago Chapter and the IEEE EMC Society Chicago Chapter and is just one example of the monthly gatherings offered by various Chicago-area professional technical organizations.

If you haven’t been to a professional technical society meeting recently, then consider taking the time to connect with this one. This coming meeting will be truly interesting from a technical perspective.  But we also have a few other compelling reasons to attend this meeting and we offer this insight into why participation in the IEEE, SAE, or other professional organizations of interest is beneficial. 

Reach Globally, Focus Locally

The global membership for the IEEE is over 400,000 and 127,000 for the SAE. These members are very accomplished individuals from industry and academia who provide the thought leadership for diverse industries. Members are scientists, engineers, technicians, business managers, analysts, and marketers. Local chapter meetings bring together a similarly wide range of member backgrounds and provide a forum for local thought leadership. Membership now, more than ever, is important for professionals. With the fast pace of technology and business change, new product development, and innovation, participation in technical gatherings is a great way to meet other like-minded individuals and learn about industry trends. The value of face-to-face interaction and networking is priceless.

Acquire New Expertise

In addition to the personal connections made by participating in local meetings, the training aspects of society members are also incredibly valuable. For example, the IEEE and SAE sponsor regular regional and national training sessions that can help build a skill set that will make an engineering career more productive and keep one’s knowledge up to date.

Advance Your Career

Building leadership skills is also a great personal growth experience from society participation. Members that help run and grow local chapters, and develop standards, as well as those who participate in national leadership positions can benefit from the experience of working with others toward a common good. The multi-dimensional combinations of technical, leadership and communication skills are highly sought by employers.

Come on out to the next meeting on March 16 and learn more about the IEEE and the SAE. Talk to members and see how your professional career could benefit from getting to know others in your industry.

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Employee Spotlight: Marty Kalnins

Here’s a little bit about a new addition to our EMC testing department, Marty Kalnins:

Title: EMC Engineer

Year Started at Elite: 2017

Education: Bachelor’s in EE from IIT

Any unique hobbies, talents, skills, experiences, etc.: 

3D printer design/build; Licensed pyrotechnician for 17+ years.

What would you consider to be your passion outside of work? How did you get started in it? Any advice for anyone looking to try this activity?

Pyro/Fireworks. My father-in-law got me started in the business.  He let me set up for the 4th of July display in Oak Forest, IL. That was it–I was hooked. I now shoot 7 shows a year. To get into this industry, you need to first find a licensed pyro-tech.  The tricky thing is that we are few and far between.

Proudest moment in life so far:

My kids and graduating from college (I started back to school at the age of 45).

What would you consider to be your passion outside of work? How did you get started in it? Any advice for anyone looking to try this activity? 

Just doing anything outside (except in the Illinois winters).

How did you get involved with EMC/ENV testing?

A close friend got me into it. 

Why did you choose to work at Elite?

Elite is the premiere EMC lab in the area (and see above).

If you had a personal motto, what would it be?

“Use it or lose it.”

If you could be paid something other than money, what would you choose?

GOLD.

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Updated RED Official Journal Released

An updated version of the Radio Equipment Official Journal has just been published. Manufacturers should review this new list to review the latest revision for the harmonized standards to apply for a European transmitter/receiver conformity assessment.   Recall that manufacturers can self-declare compliance with the RE-D if they apply a harmonized standard in full for their assessment. When a harmonized standard is not applied in full then manufacturers should apply other conformity assessment modules, for example, Module B Type-Examination.

First publications of standards include:

  • EN 300 422-1 V2.1.2   Wireless Microphones
  • EN 301 166 V2.1.1    Land Mobile Radios
  • EN 301 908-11 V11.1.2  CDMA UTRA FDD Repeaters
  • EN 301 908-15 V11.1.2  E-UTRA FDD Repeaters

For more information contact Steve Laya at 630-495-9770 x 119 or email

Click here to view the updated journal

Labels: Radio Equipment Directive (RED)

Employee Spotlight: Zachary Ryan

Here’s a little bit about our new official member of Elite’s automotive EMC testing department, Zak Ryan:

Title: EMC Test Engineer

Year Started at Elite: 2017

Areas of Expertise/Interest: Audio

Education: UIC BSEE ’16, COD AAS ’14

Any unique hobbies, talents, skills, experiences, etc.: Play guitar, design personal circuits, arduino applications

Proudest moment in life so far: Obtaining my BSEE, recording an album with my band

What would you consider to be your passion outside of work? How did you get started in it? Any advice for anyone looking to try this activity? 

Music/guitar. Started in middle school wanting to play songs from my favorite bands. Eventually got really interested in music theory.  My advice is to go out on a limb and commit to learning. It takes time. 

How did you get involved with EMC/ENV testing?

My audio interest led me to RF work and I’ve always enjoyed lab settings.

Why did you choose to work at Elite?

Great customer reviews and laboratory environment. Hands-on work and local to where I live.

What is something that customers/colleagues might find surprising about you?

I drive a stick-shift car–all cars I have MUST be a stick.

If you had a personal motto, what would it be?

Strive to be better.

 If you could be paid something other than money, what would you choose?

Food gift cards to nice places 🙂

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Elite Expands its Downers Grove Lab Campus to Improve Schedule Lead Times and Add Services

Construction crews are busy preparing 15,000sq.ft. of new laboratory space at our recently acquired North Annex test facility.  This addition to Elite’s growing Downers Grove campus will house more environmental chambers for temperature testing, humidity, altitude, and others. It’s also being designed to meet the growing demand for testing cabling, connectors, and materials.

New services will include a fully provisioned machine shop where tooling, fixtures, and automation will be designed and manufactured to provide one-stop services for clients. With this in-house capability, Elite customers will have priority access and quick turn-around for custom-built test support equipment of all types.   

As part of the expansion, Elite will also rearrange existing equipment at its main building and repurpose space for other uses.  In this reassigned space new EMC chambers will be built to meet the growing demand for EMC test services and to shorten schedule lead times.

Testing at the new annex will begin in late March so stay tuned for news and updates on the expansion and new services to follow.   

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2017 Learn EMC Courses with Dr. Todd Hubing

World Class EMC Courses in the Midwest 

Dr. Todd Hubing of LearnEMC has established a world-class EMC training facility in the historic town of Stoughton, Wisconsin – just 20 minutes south of Madison (less than 2 hours from O’Hare).

LearnEMC offers short courses that provide relevant, practical, and proven EMC design knowledge and techniques geared toward producing designs that pass compliance regulations the first time. The LearnEMC training facility has been designed for small class sizes (16) to allow for hands-on demonstrations and plenty of interaction.

Todd Hubing’s engineering credentials are second to none. His academic research has covered an impressive range of EMC topics.  Now his training courses focus on the reliable integration of low-cost, safety-critical electronics in an electromagnetically harsh environment.  He has trained thousands of students while a professor at Clemson, Missouri University of Science and Technology, and NC State, and has helped hundreds more through workshops and corporate-sponsored EMC training events.

Todd is an IEEE Fellow and a Fellow of the Applied Computational Electromagnetics Society. He is a past president of the IEEE Electromagnetic Compatibility Society and served on the society’s board of directors for 18 years between 1995 and 2013.

COMING EVENT- April!

2017 LearnEMC Short Courses

Session 1: April 3-6  price & registration

Location: LearnEMC facility in Stoughton, Wisconsin 

Instructor: Todd Hubing 

April 3, 2017

The Physics of Electromagnetic Compatibility Measurements

April 4-5, 2017

Electronic Systems Design for EMC Compliance

April 6, 2017

Computer Modeling Tools for Electromagnetic Compatibility

Session 2: May 1-4  price & registration

Location: LearnEMC facility in Stoughton, Wisconsin

Instructor: Todd Hubing*(except for May 1-2)

May 1-2, 2017

Electronic Product Design and Retrofit for EMC

May 3, 2017

Printed Circuit Board Design for EMC and Signal Integrity

May 4, 2017

Advanced Printed Circuit Board Design for EMC

Session 3: September 11-14  registration opens in March

Location: LearnEMC facility in Stoughton, Wisconsin

Instructor: Todd Hubing

September 11-12, 2017

Design for Automotive EMC Compliance

September 13, 2017

Automotive Printed Circuit Board Layout

September 14, 2017

Power Electronics Design for Electromagnetic Compatibility

Session 4: October 16-19  registration opens in March

Location: LearnEMC facility in Stoughton, Wisconsin

Instructor: Todd Hubing

October 16-17, 2017

Fundamentals of Electromagnetic Compatibility

October 18-19, 2017

Design for Guaranteed EMC Compliance


Join us in historic Stoughton, Wisconsin for EMC training at its best!

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Employee Spotlight: Brad DeGrave

Here’s a little bit about our new official member of Elite’s environmental stress testing department, Brad DeGrave:

Title: Industrial Engineer

Year Started at Elite: 2016

Areas of Expertise/Interest: Environmental Testing/Process Flow

Education: MS Industrial Management – Northern Illinois University/BS Industrial Engineering – Northern Illinois University

Proudest moment in life so far: Watching my four-year-old daughter grow and mature.

What would you consider to be your passion outside of work? How did you get started in it? Any advice for anyone looking to try this activity? 

Just doing anything outside (except in the Illinois winters).

How did you get involved with EMC/ENV testing?

A customer pointed me to Elite while I was job hunting. 

Why did you choose to work at Elite?

Seemed laid back and really offered the opportunity to finally have a work/life balance. 

If you had a personal motto, what would it be?

“Respect isn’t given, it is earned.”

 If you could be paid something other than money, what would you choose?

Scotch.

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Act NOW – 10 Steps for RED Compliance

With the deadline for compliance with the Radio Equipment Directive (RED) coming on June 13th, 2017, manufacturers of wireless transmitters should be preparing their CE Marking conformity assessment files now to reflect the requirements in the RED.

Here’s a quick summary of steps to take to ensure your continuing compliance:

1. Determine if your product falls within the scope of the Radio Equipment Directive (RED).

If your product includes broadcast receivers such as FM or TV tuners then you will now need to comply with the Radio Equipment Directive. Remember that all products under the scope of the RED, including FM or TV tuners, will need to comply with requirements for Effective Use of Spectrum along with EMC and Low Voltage Directive essential requirements, with no voltage limit applying. Line-connected Telephone Terminal Equipment is now in the EMC Directive.

Marine, aerospace, and military radio and receiver applications may not fall under the RED but check your specific application to confirm which directives apply.

Also, products that have traditionally been only required to meet the EMC, LVD, or MSD directives which now include a modular wireless device will fall under the RED. 

2. Identify the harmonized standards that apply to your device.

Review the Radio Equipment Directive Official Journal for updates on the suitable harmonized standards to apply. Most radio transmitter standards can be downloaded from www.ETSI.org.

3. Determine if newly published standards have additional requirements and address gaps in compliance.

If the harmonized standard for your device does not appear in the OJ, then review the Work Program for an approximate publish date. Based on this information a manufacturer can determine if a harmonized standard can be applied for a self-declaration or if the conformity assessment will need to be a type of approval.

4. Confirm that you have addressed EMC essential requirements.

In addition to RED EMC standards such as EN 301 489, you may also need to apply application-specific standards, such as EN 61326, EN 13308, or others. Review the EMC Directive Official Journal for applicable standards.

5. Confirm that you have addressed LVD essential requirements including RF hazards.

The LVD harmonized standard should be applied to assess electrical safety essential requirements. Commonly applied standards include EN 60950-1 for ITE and transmitters as well as EN 61010-1 for instrumentation and controls. Also, manufacturers need to comply with RF hazard requirements such as EN 62311 or others applicable to the product and application. Review the LVD Official Journal for applicable standards.

6. Ensure all labeling and traceability requirements are met.

One of the more significant changes to the RED is to include product traceability requirements. This means that manufacturers will need to include a model, batch, or serial number on their products and note it on their Declaration of Conformity.

7. List any restrictions for use or authorization requirements.

If the use of the wireless device comes with restrictions or if the device is required to be operated with a license, then it is necessary to notify end users appropriately with a pictogram label and other instructions. Review the Elite Blog on notification for RED restrictions or authorized use.

8. Review and update your Declaration of Conformity (DoC).

Update your Declaration of Conformity so it accurately reflects all the directives that apply and references the harmonized standards that were used to provide the presumption of conformity.  

9. Create or update your Technical File.

Manufacturers are required to maintain a technical file for 10 years after the product was placed in the European market. Review Annex V of the directive for the scope of information required to be included in a technical file. 

We recommend that wireless device manufacturers who incorporate “radio modules” in their products that have the Article 3.2 Effective Use of Spectrum testing performed by the radio module OEM, request a copy of the actual compliance report from the module OEM and include it in their technical file. 

10. Self-Declare or Type-Approval

If a harmonized standard is published in the RED Official Journal and that standard is used to demonstrate compliance with the RED then a manufacturer or importer can self-declare compliance with the RED – see Annex II.

However, if a manufacturer does not apply a RED harmonized standard in full then the self-declaration process is not suitable and the conformity assessment options are Type-Approval certificate as described in Annex III of the Directive, or the Annex IV full quality assurance process.

For more information on these steps or the RED compliance process, contact Steve Laya or Dan Crowder at Elite.

Steve Laya 630-495-9770 x 119

Dan Crowder 630-495-9770 x 101

Labels: Radio Equipment Directive (RED)

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Know Your RED Harmonized Standards Publish Dates

Manufacturers of wireless transmitters and receivers must comply with Radio Equipment Directive (RED) by June 13th, 2017. After that date, the R&TTE Directive will no longer apply. A manufacturer can presume conformity with the RED if they apply harmonized standards in full. A list of harmonized standards is published in the Official Journal (OJ) for the RED and new standards are regularly being added to the OJ.

But the list of harmonized standards published in the RED OJ is presently significantly incomplete. So how do manufacturers know when the standards that apply to their products will be available for their conformity assessment?

To help anticipate publish dates for RED standards, the European Commission has made available a Work Program summary that lists the various standards under consideration for the OJ and their approximate publish dates.

Manufacturers are encouraged to review this list and the RED OJ on a regular basis. If the standards that apply to their products are published or are going to be published in the OJ by the June 13th, 2017 RED deadline date, then they would be able to issue a Declaration of Conformity (DoC) and self-declare compliance with the RED. This process is described in Annex II of the RED and is called Conformity Assessment Module A Internal Production Control.

However, if the harmonized standards applicable to their products are not published and are not scheduled to be published by June 13th, 2017 then Annex III of the Directive can be used as the conformity assessment. This process is an EU-Type examination based on internal production control and will require a Notified Body for the RED to review the technical file and issue a type examination certificate.

Radio Equipment Directive Official Journal

All Active Work Items For Directive ‘2014/53/EU’

For more information on this process, contact Steve Laya or Dan Crowder at Elite.

Steve Laya 630-495-9770 x 119

Dan Crowder 630-495-9770 x 101

Labels: Radio Equipment Directive (RED)

RED Notification Procedure

The European Union has released a draft implementing act for labeling radio equipment having service restrictions and for equipment requiring authorization (licensing). The draft was just recently issued and manufacturers have 60 days to respond with their input on the policy before the comments period ends on March 16th, 2017, after which the act will go into force.  

The label notification applies only to radio equipment that is subject to restrictions or licensing in at least one EU Member State. The notification format is a table pictogram having the abbreviations for the Member States where any restrictions or authorization requirements apply. The design includes a booklet alert sign intended to communicate to the end user the need to read the manual to review the device restrictions before use.

For most low-power wireless devices manufacturers can apply harmonized standards to comply with the Radio Equipment Directive. These harmonized standards specify the technical requirements including permitted frequency ranges, transmit power levels, and receiver operations. However, manufacturers still need to determine if any specific market or application restrictions exist for their product’s end use.

Transmitter restrictions for low-power devices can be found in ERC Recommendation 70 03. For example, Radio Microphones, Assistive Listening Devices, and Audio Multimedia Streaming System Annex 10 outlines allowable frequency bands, restrictions, and licensing. Radio Microphones operating at 1492-1518MHz are required to apply for an individual license and are restricted to indoor applications.

If you have a transmitter that you believe may have restrictions or license obligations, contact Elite for a review of your device application.

Contact Steve Laya at 630-495-9770 x 119. 

Labels: Radio Equipment Directive (RED)

EN 300 328 Now Published in OJ

The long-awaited RED version of EN 300 328 has now been published in the Official Journal for the Radio Equipment Directive 2014/53/EU.  This standard covers wideband transmission systems operating in the 2.4GHz band such as Bluetooth, Zigbee, and WiFi.

The new version of EN 300 328 is V2.1.1 (2016-11) and includes a few key updates that manufacturers need to address in order to apply the harmonized standard in full.

The major changes to EN 300 328 are:

  • Inclusion of Receiver Blocking as a new requirement.
  • Inclusion of an alternative test method for Power Spectral Density.
  • Reduction of minimum number for hopping frequencies for non-adaptive FHSS equipment.

If your existing Declaration of Conformity (DoC) identifies a version of EN 300 328 earlier than V2.1.1 then you may need to update your report documentation and DoC reference.   

In particular, previous versions of EN 300 328 exempted Receiver Blocking for non-adaptive equipment or adaptive equipment operating in a non-adaptive mode, as well as for equipment with a maximum declared RF Output power level of less than 10 dBm e.i.r.p.   This means that many Bluetooth Low Energy (BLE) transmitters will need to be tested for Receiver Blocking compliance.

Manufacturers can send their current DoC to Elite for a review of the specification reference and from the analysis, we can determine if any gaps exist between the current required harmonized standards and the standards referenced on the DoC.

Contact Steve Laya or Dan Crowder for more information.

Labels: Radio Equipment Directive (RED)

10 Steps to Successful Automotive EMC Testing

An average passenger car today relies on between 50 to 75 embedded electronic modules to monitor and control nearly all aspects of vehicle operations. These functions include steering, braking, tail-pipe emission controls, safety, and entertainment and comfort enhancements, to name just a few.

To ensure safe and reliable operations of these systems, a rigorous, multistep test-and-validation process is often performed as part of product development.

Our FREE e-book will take you through each step:

  1. Determining your target market
  2. Product function and expected performance
  3. Compatibility with other devices
  4. Test requirements and documentation
  5. Test lab needs
  6. Development testing
  7. Test quoting and scheduling

As well as three more important steps to guide your successful automotive EMC testing!

Download 10 Steps to Successful Automotive EMC Testing for Free

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Elite Invests in Nine R&S ESW Receivers

We’re proud to announce the recent acquisition of nine Rohde and Schwarz ESW EMI receivers for our Downers Grove laboratory operations. The units are presently being integrated into our EMC test stations and we’re quickly recognizing the significant benefit these state-of-the-art instruments will provide to our clients.

Elite’s ESW receivers will be supporting conducted and radiated emissions testing for our automotive, military and commercial aviation projects. OEMs such as BMW, Ford, and Fiat-Chrysler are encouraging the use of this time-saving technology to accelerate emissions testing. 

The ESW offers conventional stepped-frequency scans plus an ultrafast FFT-based time domain (TD) scan. The TD receiver significantly reduces the time required for standard-compliant certification tests and can also be operated with two CISPR detectors to carry out parallel measurements. 

It’s also a diagnostic and troubleshooting tool. For example, Elite clients can take advantage of real-time spectrum analysis. The spectrogram function displays the analyzed spectrum versus time, making rapidly changing interferers visible, and using frequency triggers information reveals critical and hidden signals. 

The ESW offers integrated notch filters, especially for the license-free ISM bands around 2.4 GHz and 5.8 GHz, which are used by wireless transmission technologies such as BluetoothTM and WLAN. Strong carrier signals in these bands can severely impact the dynamic range of instruments during EMI field strength measurements, and minor interference signals outside these bands can go undetected. With this instrument, we can perform more reliable and efficient certification measurements. 

The ESW incorporates a configurable auto-test feature, which makes it possible to automate complex measurement processes. This test configurator allows users to define parameters and criteria independently for preview measurements, peak search, and final measurements, using quasi-peak, CISPR-average, and RMS-average detectors. 

The test report generator helps operators document all parameters required for certification directly after measurements are taken.

For more information on this new test capability, contact Elite!

Labels: ESW Receivers

2.4GHz Radio Standard Update Published

EN 300 328 is the European harmonized standard and compliance requirement for wideband transmission systems operating in the 2.4GHz ISM band. This is the compliance standard for products like WiFi, Bluetooth, and Zigbee transmitters that operate in the 2.4GHz band. The latest revision of the standard “V2.1.1” was released as a published ETSI standard and is available for manufacturers to use for their conformity assessment. 

Some of the changes in the new revision include the inclusion of “Receiver Blocking” as a test and requirement. There are also changes to the minimum number of hopping frequencies for non-adaptive FHSS systems. The update also provides an alternative test method for measuring Power Spectral Density. A copy of the new standard is available on the ETSI website.

Download the new standard here (pdf)

Note that this standard is not yet published in the RE Directive Official Journal but we anticipate it will be soon.

Labels: 2.4GHz Radio Standard

Elite’s 2016 in Review

As the remaining days count off in December, we look back on a very exciting but challenging 2016. We also reflect on our efforts to invest in and improve our services all in the name of meeting customers’ needs and expectations.   

Guiding our direction is the valued input we receive from clients. This feedback comes from first-hand conversations and suggestions, email surveys, as well as staying current on tech, regulatory, and industry trends.  

We continue to hear a familiar and consistent theme for our customer requirements. First, clients want us to provide a high level of technical expertise and competence to ensure accurate and trusted results. Second, they want quick access to our services sometimes with little or no notice; and third, they stress the importance of having highly efficient test services from start to finish so that their projects are completed in a timely and cost-effective way. 

So what did we do in 2016 to step up to the challenge? Here’s a quick review of the year’s highlights and steps we took to satisfy customers’ top demands:  

We Added New Staff –   

To ensure quick access to lab services we added 7 new test engineers.  All are fresh-thinking engineers who are eager to learn and grow with Elite. Ricardo Parrales, Justin Ibarra, Tylar Jozefczyk and Devin Vallee are the four newest members of our EMC test team. Brad DeGrave, Nick De Pasion, and Nella Granback also joined Elite this year to serve our environmental customers. We’re extremely impressed with their contributions to date and are inspired by their work ethic and desire to help Elite customers succeed at their business.  

We welcomed the specialized expertise of Todd Bruhl and Ed Allfrey.  Todd brings over 25 years of machine design, automation, and instrumentation experience. With his skillset, Todd can provide turn-key fixturing, test tooling, and test automation quickly, then fully integrate and support it within our lab. Ed Allfrey has been a business consultant to Elite for over 20 years. Now as a permanent employee he’s able to directly infuse his insight and business acumen into our company and help us increase productivity.  Ed is applying structure to our process improvement efforts and he provides valued input to our strategic planning team.

We’re Adding More Space –  

Another major step toward reducing lead times is the acquisition of 15,000 sqft of new test lab space. This significant addition by Elite will positively impact both environmental and EMC scheduling. Stay tuned for more details on this planned expansion coming in early 2017. 

We Continue to Automate and Add New Technology –    

Elite invested in nine Rohde & Schwarz ESW receivers. These instruments will greatly improve the efficiency of our emissions testing and will provide helpful troubleshooting features and capabilities to benefit our clients. We increased our lightning test capacity by acquiring another Thermo WF3 lightning generator. We also developed software and procedures for the newly released MIL-STD-461G. Likewise, for automotive testing, we updated EMC software and streamlined our processes. Elite’s new automatic project reporting email system was developed by our engineers to record and communicate to clients the status of testing on a daily basis.

New Services –  

In November we brought online new antenna testing services and consulting. This capability directly complements our regulatory test and certification services for wireless devices and it provides a one-stop for all compliance and RF design optimization needs. 

Internal and External Training Offering- 

  • We continued to maintain a monthly regimen of in-house training to keep Elite staff informed on new processes and technology. We continue to actively support individual learning through professional credentials such as iNARTE. Elite also established an agreement with DeVry University to encourage employee graduate and post-graduate education.  
  • Our staff presented online webinars, traveled onsite to give customer regulatory training, and presented live at IEEE events including the annual EMC symposium.  
  • Elite partnered with local experts to connect clients with world-class EMC design training.    
  • Elite engineers remain active leaders in technical standard writing committees and bring first-hand expert knowledge of industry trends back to serve Elite clients.

We certainly stayed very busy for 2016 but our entire staff looks forward to the next set of challenges coming in the new year. Watch for our January newsletter where we will have more information on our facilities expansion and the new services being launched.

Thank you again for choosing Elite as your test and certification services provider. We welcome your feedback on our services and please consider sharing your comments, suggestions, and ideas with us to help us serve you better.

Elite Electronic Engineering, Inc.  

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IEEE JCK Memorial Scholarship

The IEEE James C. Klouda Memorial Scholarship was established in memory of James C. Klouda and his professional career in the field of electromagnetic compatibility. The Scholarship Fund awards, on an annual basis, a scholarship to a qualified undergraduate student seeking an electrical engineering degree with an emphasis in the field of EMC or a related discipline, from an accredited U.S. university or college. We hope that friends and relatives of our customers might benefit from this award as well so please inquire. Contact us for more details on the scholarship and how to apply (or see info below).

Administration:  EMC-S will serve as administrator of the IEEE JCK Memorial Scholarship Selection Committee.

Eligibility:  The Scholarship Candidate must:

  • Be a U.S. citizen
  • Be enrolled as a full-time student in electrical engineering at an accredited university or college and inside the U.S. (no distance learning or online course students are eligible)
  • Have completed freshman year in an electrical engineering program at an accredited university or college in the U.S.
  • Hold a GPA of 3.0 or above on a 4.0 scale
  • Have completed college coursework in electromagnetic compatibility or in a related discipline

Prize Items: The Scholarship Fund will be used to fund on an annual basis the following annual expenses:

  • A maximum of US$1,000 for one student for school expenses (tuition, books, students fees)
  • EMC-S Student Membership for 12 months to one student

Basis for Judging:

  • Evidence of maintaining a cumulative GPA of at least 3.0 on a 4.0 scale
  • One referral letter from an individual who is qualified to evaluate the applicant’s academic accomplishments (e.g., professor, administrator, employer, internship organization)
  • Additional consideration will be afforded to scholarship applicants that reside in IEEE Region 4

Application Deadline: January 31st, 2017 *Deadline subject to change*

APPLY NOW

Stay tuned for more updates.

Click on the flyer below to download scholarship information.

Labels: EMC Scholarship; JCK Memorial Scholarship; IEEE EMC

CMW 500 Radio Communications Tester

As part of our commitment to wireless device testing, Elite has recently acquired a Rohde & Schwarz CMW500 communications tester. This instrument is essential for testing cellular, WiFi, and GNSS-enabled products.  Its purpose is to establish the RF communications link and monitor the transmitter/receiver performance.

This instrument will support Elite testing services in three areas:

1) Elite can now provide a live RF link to support communications evaluation during EMC and environmental stress testing.  Many of the products tested at Elite now incorporate a cellular or WiFi radio and often times a communication link has to be established and monitored during the test.  With this instrument, Elite engineers can communicate with the client’s radio and monitor attributes such as block errors, packet errors, or others.  By providing a CMW500 right here at Elite we can test products having cellular communications or other services without the client having to ship their tester.

2) CE Mark Immunity Testing.  The R&TTE (and RED) harmonized standards such as EN 301 489-7 and EN 301 489-24 specify BER and throughput performance criteria to evaluate immunity compliance.  With the CMW500 we will be able to set up the cellular (or WiFi) communication channel and monitor performance live and thereby evaluate pass/fail criteria.  Having this equipment in-house will enable Elite to provide a comprehensive and, where required, a more appropriate assessment of CE Mark compliance.

3) Pre-compliance TRP/TIS Measurements. Certainly for PTCRB/GCF services Elite relies on the expertise of our partner 7Layers to get Verizon, ATT, Sprint, and global network operator acceptance.   But at Elite we can now help clients locally by offering PTCRB pre-compliance services.  Using our CMW500 and a 3D chamber we can measure TIS receiver sensitivity (or TRP) so that final compliance at 7Layers will proceed with greater confidence.   

For more information on the CMW500 Communications Tester view the YouTube presentation from Rohde & Schwarz for a description of the basic LTE features for this instrument.  Contact Steve Laya at Elite for more information on the other cellular, WiFi, or GNSS capabilities and configuration of our CMW500.  

Steve Laya,  630-495-9770 x 119

Email

Check out this quick video explaining how the instrument works

Labels: Radio Communications Tester

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Array of Things

Closing Keynote Address at IoT Summit Chicago

November 9-10, 2016

At the November 10th 2016 IoT Summit Chicago, the Closing Keynote presentation was given by Brenna Berman, CIO for the City of Chicago, Charlie Catlett, from Argonne National Labs, and Douglas Pancoast of the Art Institute Chicago. 

The presentation announced the first node placements in Chicago for the Array of Things urban sensing project.   A total of 500 wireless-based sensor nodes will be mounted to streetlight traffic poles throughout Chicago by the end of 2018. These sensors will collect data on air quality, sound, vibration, and temperature. 

The information will be completely open-source and fully accessible to anyone for free. It’s the largest most ambitious project for collecting data on urban living in the world. The data will be analyzed by scientists, urban planners, and businesses to study different environmental conditions and trends, for example:

  • Relationship between diseases and the urban environment. 
  • Improve city services and infrastructure
  • Measurements of micro-climate in different areas of the city
  • Determine heavily populated pedestrian areas at different times of day
  • Timing traffic lights during peak traffic hours
  • Improve pedestrian safety and reduce congestion-related pollution.

The project has greater plans to populate other cities with sensors so data can be compared and studied across many different locations. Chicago will be the central hub for all data that are collected and made open source.

We at Elite are particularly excited to see the Array of Things project receive such impressive attention since our engineers had a small hand in this project as the FCC/CE compliance test lab for the first array nodes. Good job Elite!

And best wishes to the team at Argonne, University of Chicago, Urban Center for Computation and Data, and the City of Chicago.

To learn more about the Array of Things project link to their website at https://arrayofthings.github.io/

Labels: Internet of Things

Elite’s Antenna Testing Services

By Stacey Klouda, Elite’s Marketing Specialist

I recently interviewed Steve Laya, Elite’s Sales and Marketing Manager, to discuss the new Antenna Testing & Consulting services offered by Elite. 

So Steve, why antenna testing at Elite?

We’re strategically focused on wireless technology and testing.  Many Elite clients are designing RF transmitters or integrating radio transceivers into their products. They rely on us for regulatory compliance services but have also asked for our help to optimize their devices and specifically with respect to their antenna performance.   

Isn’t an antenna just a simple structure and why does it need to be tested?

For sure in some cases, an antenna is just a simple element, but electromagnetically even a basic dipole needs to be optimized for range, efficiency, and bandwidth. If you can design a well-matched and properly-tuned antenna then you’ll achieve the required data throughput for your application and do so without drawing excessive power or creating other RF consequences.  

Some clients design their antenna as a metal trace on their transmitter printed circuit board (PCB) while others use purchased products that are either soldered to the PCB or are attached to the RF output port. 

For either designed-in or purchased antennas, once the element is installed the performance of that antenna and transmitter will be affected by the host board circuitry and nearby structures. The testing we’re offering will help engineers visualize these electromagnetic interactions and optimize the host board layout, antenna, and housing structure. 

Our antenna patterns will even illustrate the RF propagation for a wireless transmitter on a specific mounting surface. Plus we can measure the interaction between the antenna, digital host electronics, and the receiver to measure its sensitivity, which is particularly important for cellular modules. 

What services can you provide?

We’ve developed relationships with nearby experts who will perform the testing and provide these services.  Our partners are Mobile Mark, NEBENS, and Wistron.

For antenna pattern mapping we rely on the fully-anechoic RF chamber at Mobile Mark in Itasca, Illinois. They’re 20 minutes from Elite and can provide 2D and 3D antenna patterns along with efficiency, gain, and other measurements.

NEBENS, Inc is our independent electromagnetics consulting partner. They have world-class expertise in RF systems design, antenna design, modeling, and simulation. Their exciting new MIMObit software analyzes multi-antenna Tx/Rx systems in a variety of propagation environments. If you’re considering MIMO for your application you need to contact Nick Burris, right now.

Wistron is our partner offering local access to PTCRB pre-testing to confirm Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS) performance prior to final operator compliance testing. 

Why did you select these partners?

First of all, these folks are the experts. They have an amazing track record of providing expertise in areas that we believe will help our wireless clients be more successful. We really believe in their engineers and trust them to work with our customers. Second, they’re all within 30 minutes of Elite which means services will be convenient and cost-effective.

How do I access these services?

Just contact Elite and we can get you started. As with all our partner services Elite can provide a one-stop turn-key offering. Elite staff can facilitate the initial discussion, define the scope of the project, generate a proposal for services, and kickoff start dates. Many of our clients already have Elite as an approved vendor in their supply chain database which makes it just more convenient to source these partner services through us. So certainly Elite can provide access to these services through subcontracting.

But we also promote our partners independently on our website, and if preferred, we will have our clients engage directly with our partners. For each project we let the client decide which approach works best for them, and that’s how the services proceed.

For more information on these antenna services, contact Steve Laya at 630-495-9770 or by email.

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Official Journals for R&TTE, RED, EMCD, and LVD

The following links connect to the current Official Journals for R&TTE, RED, EMCD, and LVD:

RED     2014-53-EU – Harmonized Standards – C 416/5 – 11 November 2016

R&TTE  1999-5-EC – Harmonized Standards – C 249 – 8 July 2016 (PDF)

EMCD    2014-30-EC -Harmonized Standards – C 293/29 – 12 August 2016 (PDF)

LVD       2014-35-EU – Harmonized Standards – C 249 – 8 July 2016

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IoT Summit Chicago

Elite recently attended the IoT Summit Chicago, a technical and business conference sponsored by the Illinois Technology Association. The event covered two days of presentations on all aspects of the rapidly growing connected work of the Internet of Things.

Elite has a significant interest in the IoT because of the testing and certification services we apply for sensor technology, wireless transmitters, and networking infrastructure. The range of new and existing technologies being deployed for the IoT is projected by experts and analysts to reach 40 to 50 million connected devices by 2020. That’s only four years away!

The summit included presentations covering venture capital and investment, business models, cloud services, system integration, networks, sensors, and transmitter hardware.

The IoT Summit is an important event for metro Chicago but its significance certainly extends to the entire Midwestern economy.  Chicago is working hard to grow its name as a technology hub, and recent national rankings list it within the top 10 cities for tech.  

Some of the more noteworthy technical presentations recognized that there are plenty of interesting and innovative technical solutions on the way for the IoT.  However, there seems to be a consensus that eventually three classes of networks will emerge depending on the application needs:

  1. Short range – Bluetooth, WiFi, and Mesh, Nearfield
  2. Long distance, large bandwidth – Cellular, satellite
  3. Low Power, Low Data, Long Distance – LORA, SigFox, Ingenu
  4. Cellular CAT-M & NbIoT

Which networks and transmitter technology will emerge as leaders is still being played out, but ultimately the winning solutions will be based on a business case with a strong RoI for each unique IoT application.

Both Comcast and Senet touted build-outs of LORA 900MHz networks in Chicago as well as other US cities.  Several presenters mentioned the implementation of cellular CAT-M devices by the end of this year and NbIoT radios by 2017. Time will tell how the IoT will take shape but Elite will be ready in all cases to service manufacturers bringing products to market.

For more information on the IoT Summit Chicago and for information on Elite services for IoT, contact Steve Laya

Employee Spotlight: Tylar Jozefczyk

Here’s a little bit about a new official member of Elite’s EMC testing department, Tylar Jozefczyk:

Title: EMC Test Engineer

Year Started at Elite: 2016

Areas of Expertise/Interest: Still learning, but EMC testing

Education: Bachelor of Science in Physics & Minor in Mathematics from Loyola University Chicago; Bachelor of Science in Electrical Engineering from the University of Illinois at Chicago

Any unique hobbies, talents, skills, experiences, etc.: Video games, books, anime/manga, watching Blackhawks games. I used to play volleyball, basketball, and softball. I play the piano and was in band/pep band for 7ish years.  

Proudest moment in life so far: As cliché as it may be, getting my two degrees. I had been in school for nearly 7 years, so finally getting both degrees and hanging them up was really cool.

What would you consider to be your passion outside of work? How did you get started in it? Any advice for anyone looking to try this activity? 

I don’t really have one specific passion, but I tend to jump around to a lot of media stuff, like movies/video games/anime, and animated stuff.  I like having a bunch of things that I can be into and keep myself busy with.  As for advice, I always say ask a friend for recommendations that they think to match your personality and interests, then branch out from there. I would also say just jumping in and trying something out it since you never know if you’ll like it or not if you don’t give it a shot.

How did you get involved with EMC/ENV testing?

Mostly through looking at the different jobs that I could do as an electrical engineer. 

Why did you choose to work at Elite?

With my degree, I wanted to be involved with the physical aspect of engineering.  I originally hadn’t thought of working in testing, but after looking into it I realized that it was up my alley.  

What is something that customers/colleagues might find surprising about you?

I really love astronomy and if I didn’t want to be an engineer, I would be an astrophysicist.   

If you had a personal motto, what would it be?

“The good thing about science is that it’s true whether or not you believe in it. Plus it’s awesome and all that.”

 If you could be paid in something other than money, what would you choose?

Video games or books.

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Updates for GMW3097 EMC Testing

Manufacturers of new electrical and electronic modules to General Motors must perform EMC validation testing in accordance with the specification titled GMW 3097 (June 2015). The spectrum of testing required by GMW 3097 consists of conducted/radiated emissions, conducted/radiated immunity, conducted transient immunity/emissions, and Electrostatic Discharge.

Recently, GM has enacted a new policy that places much greater emphasis on the summary reporting requirements listed in GMW 3097 (June 2015). The summary report obligations for suppliers are stated in Section 3 Requirements, Part (d) in the Notes:

Note: In addition to the procedure report(s) per item “d” in the preceding list, the supplier shall also submit a brief summary of any/all DV/PV data associated with any test under an approved EMC test plan within five (5) working days of completion of that testing. This submission shall be via email to both the GM Design Responsible Engineer (DRE)/Designing Engineer (DE) and the GM EMC engineer.

GM requires that the supplier must send by email an in-process summary report after the completion of each separate phase of testing, i.e upon completion of radiated emissions, or conducted transients, ESD, etc. In addition, when the supplier sends the data summary report to the GM DRE/DE, the supplier must also “cc” copy the EMC test lab confirming the summary report email was transmitted. EMC labs are required to confirm that validation data was sent after each test and within five days of completion of each phase of testing.  

This new policy by GM places important obligations on both the supplier and on the test lab that performed the testing. This policy certainly includes Elite when we perform GMW 3097 EMC validation testing for our clients. GM EMC group not being updated on a test-by-test basis is no longer an option.

In addition, the GM policy stipulates that if the data is not transmitted within five days then the EMC test laboratory that performed the tests must notify GM that the data has not been transmitted. If the EMC lab (Elite) does not receive a “cc’ed” email copy of the data summary from its customer at the five-day expiration period then the EMC lab (Elite) is at risk of losing its GM EMC laboratory recognition. 

Because of the obligations placed on Elite by this GM policy, data transmittal email copies that are not received by Elite within five days will be notified to GM directly by Elite. Elite is not obligated to provide the data to GM but rather inform GM EMC DRE/DE that the five-day grace period has passed and we have not received confirmation that the data has been transmitted to GM.

Given the serious consequences of non-compliance with this GM requirement, Elite will follow this notification policy rigorously. 

Please contact us if you have any questions about this process or our testing services. We certainly want our customers to be informed of this important GM procedure and work together to avoid any complications with GM validation testing. 

For more information contact Robert Bugielski:

Robert J. Bugielski Jr.

Senior EMC Engineer

Technical Sales

ph: (630) 495-9770 ext. 168

Email

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Important News Regarding 5GHz Wi-Fi, EN 301 893 & RED CE Mark Conformity Assessment

By Steve Laya, Elite Electronic Engineering

We regularly receive important information from NIST, our liaison to Europe for CE Marking conformity assessment.  Recently we were informed that the harmonized standard for Broadband Radio Access Networks (BRAN) 5GHz WiFi will be significantly delayed for release.  The publish date of EN 301 893 in the new Radio Equipment Directive (RED) Official Journal of the European Union (OJEU)will not occur until after the June 12th 2017 transition date for the RED. 

NIST is advising Notified Bodies such as Elite to anticipate the need from device manufacturers for type approval services covering 5GHz WiFi and to follow up and participate in ongoing standards updates to EN 301 893.

Background:
The Radio Equipment Directive (RED) 2014/53/EU becomes mandatory as of June 13, 2017.  Products placed on the EU market as of that date must meet the RED.  [The R&TTE Directive can then no longer be used.]    

When a manufacturer assessed compliance of radio equipment under the essential requirements of RED Articles 3.2 and 3.3 and harmonized standards are (a) applied only in part, (2) available but not applied, or (3) are not available – it is mandatory for that manufacturer to use a Notified Body (per RED Article 17.4).  

Because of technology advancements associated with LTE-LAA, the development of the technical standard for assessing compliance per EN 301 893 is still in development and waiting for approval.   

Note: For a brief description of the issues behind LTE-LAA see the webpage section on Wikipedia regarding “Controversy”  https://en.wikipedia.org/wiki/LTE_in_unlicensed_spectrum).

The ETSI BRAN standards development working group is confirming that the revisions to the current version of EN 301 893 will not be ready in time to be placed in the OJEU (as a harmonized standard for the RED), and therefore manufacturers will be required to use a Notified Body for the type of equipment falling under this standard (Broadband Radio Access Networks (BRAN); 5 GHz high-performance RLAN) for a period of time until the document is finalized and becomes a harmonized standard.  As such, there may be a high demand for NB involvement during a period of time. 

The ETSI BRAN is also reaching out to the Notified Body community to advise them that the document will not be completed, to increase the level of understanding of changes being made (with emphasis on the addition of a new complex sharing mechanism test methodology to address new technologies),   and to provide contact information for those that want to become involved.     

In order to be prepared for this [high NB] demand, and because of the complexity of the new sharing mechanism, Notified Bodies are requested to follow up with, or participate in the work, ongoing in ETSI BRAN to become familiar with these major changes in EN 301 893.

Elite is presently a Notified Body for the R&TTE Directive and is actively working to complete its submittal processes for status as a Notified Body for the RE Directive.  We will keep clients posted on our progress toward this credential.

Link to the attached document from the REDCA for more detail on the status of EN 301 893.   ETSI Status on EN 301 893

Contact Steve Laya for more information on the changing status of this harmonized standard as well as for other European wireless regulations.

Steve Laya
Elite Electronic Engineering
630-495-9770 x 119
Email

Brave for Benjamin Health Challenge & Fundraiser

Week 4 Update
Total Distance Walked: 5,920 miles
Similar Distance:

Benjamin the Brave is a young man from Glen Ellyn, IL who is battling TCell All leukemia.  He and his family have an awesome spirit that draws people in to help hold them up when the going is tough.  Benjamin is a 7-year-old kid that was diagnosed after a visit with a suspected ear infection.  When he was at Lurie Children’s Hospital of Chicago, his mom told them that he LOVED baseball and the Chicago Cubs; they passed the word to Anthony Rizzo’s Family Foundation and they have become BFFs!

Knowing his mom through the local Jazzercise classes, Elite has taken the opportunity to have fun as a group and SUPPORT BBB.  Elite recently had a blood drive and collected 15 pints of blood; each pint helps 3 patients!  We will do this again to continue to help this young man as he gets platelets after chemo treatments.>

Elite also decided to do a fitness challenge! We have a number of employees, family, and friends tracking their steps each week.  At the end of 44 days (Anthony Rizzo’s number), there will be a winning team to split the pot of the registration fee with BBB.  We have pretty big hearts around here and think BBB will get the whole enchilada!  We have been getting additional donations along the way!

If anyone would like to contribute to our cause of helping BBB, you can send checks made out to BBB-Jennie Burke to Elaine at Elite to help with any medical expenses that insurance is not covering.  We are lucky and blessed……and so fortunate to be able to share in our community.

Stay Up to Speed – Follow So You Can Lead

Starting this September, following us on social media—particularly LinkedIn, Facebook, and Twitter—will be the best way to stay interactively up-to-date with what’s going on with Elite and with the industry. We will still be sending out our monthly newsletters to recap news and events, but with the continuous changes in this business, it’s essential to stay ahead of the curve, learn what’s happening, and be able to ask questions and communicate efficiently. Time is of the essence, and these social media tools we’re now utilizing present opportunities as timely as it gets:

Targeted LinkedIn Banners— Professional development and training are crucial in this field and LinkedIn is a great place to find what seminars, webinars, and expos are taking place we’ve just made them easier to find and sign up. 

Facebook Live Streaming–We have a free webinar covering EMC Compliance for e/E Mark that you can access from your feed, submit questions, or just tune in for exactly the info you need. We’ll have more webinars covering relevant testing topics each quarter.

Twitter Chat Forums–With so many changing standards, new recruits, and tests to run, chat forums are an excellent way to pose technical questions and get brief, but real responses that might make the difference in your next test.

Social media has evolved beyond cat videos and friend requests to be an essential tool in furthering professional development, being in tune with a rapidly changing industry, and finding answers to pressing questions.  Don’t fall behind—follow us now by clicking the icons at the bottom of the site.  You’d be surprised what you’re missing out on if you delay.

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Sine Vibration vs. Random Vibration Testing. Which Should You Perform?

When it comes to vibration testing there are two popular types to consider: sine and random. We receive frequent requests for clarification on which test to run specific products on. The answer is, of course, it depends. So here’s a bit of background to help you make a decision.

Sine Vibration Testing

Sine vibration testing applies a single frequency to a test item and selectively excites resonant structures within the device. In a swept sine test a vibration sine tone is ramped up and down through a range of frequencies and for a specified rate and duration. 

Sine testing is primarily useful in identifying resonant conditions within a test item. On an electronic module, the circuit boards are often the main resonant structures and typically their fatigue conditions are most important to understand. However, the components themselves mounted on the PCB as well as the electronics housing also have their own unique natural resonant conditions which are usually different than the circuit boards. Using sine vibration to identify resonant conditions on the PCB or on other test item structures is an effective way to understand how mechanical vibration propagates through a device and can help designers stiffen or dampen elements of the product to reduce the probability of fatigue failure.

Sine vibration test frequency plot (top). Time waveform plot (bottom)

Swept sine testing is also useful when the product’s application environment includes reciprocating equipment like motors, engines, turbines, or fans. If the application vibration environment has a significant sine characteristic and if the field vibration can be measured then a swept sine test covering the recorded environmental conditions can be run for a specified duration and at an increased amplitude to simulate a lifetime of fatigue stress.   

Sine testing is also helpful to simulate worst-case fatigue exposure by programming an electrodynamic vibration input sine tone to line up with the major resonant frequency of the test item. A vibration test that applies a fixed sine dwell at a resonant frequency will usually generate the highest amplitude displacements and accelerations and therefore the most damaging fatigue stress conditions for the product.   

Random Vibration Testing

random vibration test is one comprised of vibration energy at all frequencies over a specified range.  The vibration frequency components that make up the input signal for a random test combine in amplitude and phase to create a time waveform that appears on an oscilloscope as random noise. The characteristics of the random waveform are constantly updating and changing within the bounds of the programmed random input.

Random vibration test frequency plot (top). Time waveform plot (bottom)

Random vibration is the most common type of validation and qualification test that is performed for electronic modules. The majority of vibration environments where devices are mounted, especially electronic devices, are characterized as having predominantly random vibration conditions.   

The most effective vibration test to run is one based on actual field measurements of the specific environment where a product will be operated. By recording the in-situ vibration environment with an accelerometer or multiple accelerometers a random power spectral density plot can be created and run at the level recorded or increased to accelerate fatigue and shorten test time. On a random vibration power spectral density plot, the acceleration amplitude is scaled on the y-axis in units of G2/Hz and the x-axis units in frequency. If the measured vibration environment has sinusoidal characteristics then the random vibration profile can also be tailored to include sine tones applied over the random vibration background.

For both random and sine vibration tests, durable mounting fixtures are critical to a successful test. Elite’s in-house experts apply their expertise to design and fabricate custom fixtures to accurately simulate installed orientation and transmit interference-free vibratory energy.

If your application and project do not afford the option of measuring field vibration conditions, then the following standards provide recommendations for test conditions and durations. Some of the standards are free for download while others are available for download but for a fee.  

Military Standards
MIL-STD-810H (Method 513)
MIL-STD-202 (Methods 201, 204)

STANAG 4370 (AECTP-240, AECTP-400, AECTP-600)

Telecom Equipment Transportation
ETS 300 019-2-0

Electronic Components
JESD22-B103B

Automotive Electronics
ISO 16750-3
GMW 3172

We’ve been running vibration tests at Elite for a long time so if you need assistance in specifying a vibe test for your product contact me to discuss the particular details of your product and your end-use application. With 10 vibration test systems and large item capability, Elite is among the most capable dynamics testing labs in the world to get your project started quickly.

Contact Elite’s experts today to learn more about our Vibration and Shock Testing capabilities and how we can help qualify your products efficiently.

Watch our tutorial to prepare for your next vibration testing project.

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Elite Co-Founder & Matriarch Passes Peacefully This Week

Elite Electronic Engineering, Inc. is deeply saddened to announce the passing of Marilyn Klouda, Co-Founder of Elite and wife of the late James C. Klouda. Marilyn died peacefully on September 7th surrounded by her family.

Marilyn’s contribution to Elite cannot be understated. From the beginning, she worked side-by-side with Jim Klouda and helped create the early vision of Elite as a world-class electronics testing business. In addition to raising Klouda’s five children, Marilyn’s responsibilities at Elite included office manager, technical writing, and typist, along with sales and marketing support.  However, her greatest contribution to the success of the company is the family-oriented culture and spirit that she championed and remains a part of Elite today. Her belief in having employees working together as a family to achieve success is very much a product of Marilyn’s influence and will be her lasting legacy at Elite.

Labels: Elite news

Not So Fast, RED

On June 12, 2016, a one-year transition period began for manufacturers of radio equipment to update their European Union compliance files from conformity with the R&TTE Directive to the new Radio Equipment Directive (RED). After June 13, 2017, all radio transmitters and receivers will need to comply with the RED. But before you rush into compliance with the RED you may want to wait a while and perhaps until after January 2017 to do so.  

As of August 8, 2016, only four harmonized standards have been published in the Official Journal for the new Radio Equipment Directive, and compliance by self-declaration to the RED is only allowed if a harmonized standard, i.e. one is published in the Official Journal (OJ), is applied in full. Otherwise, a radio device manufacturer has to apply alternate conformity assessment processes such as type approval by a notified body. But this approach may be problematic too since there are only a few notified bodies that have been officially recognized to date.

A full suite of harmonized standards was planned to be published in the RED OJ by the start of the transition date in June 2016.  But because there are several significant updates to standards the process to reach a consensus on regulations for new wireless technology has taken much longer than anticipated. The European Commission has announced that it is planning to release RED OJ updates on a more regular basis, but it’s likely we will not see an OJ that includes the more common standards such as EN 300 328, EN 300 220, or EN 301 489 until the end of 2016.

That means that manufacturers of products that are currently assessed under the R&TTE Directive will need to maintain their existing compliance file a bit longer and perhaps up to June 2017. Manufacturers of new transmitter equipment will need to comply with the R&TTE if there is not an applicable standard published in the OJ for the RED.

Elite will keep you posted on the latest updates as we hear of them. Watch for our upcoming newsletters.

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Restrictions for Wireless Transmitters

The European Commission is finalizing specifications for the labeling on products that will indicate when a transmitter is restricted for use in certain countries. Since the RF spectrum in Europe is not fully harmonized, manufacturers of wireless transmitters must be aware of any unique country restrictions or special limitations for operations. Limitations for use of a transmitter may include operating on unauthorized frequency bands, output power levers that are lower than other EU countries, or shorter transmit duty cycles.

Only the Member States where a restriction exists will be identified on the label. The restriction itself does not have to go on the package but should be noted in the instruction manual. The label and its indication of a possible restriction are meant for the users that buy the product.

The final release of the implementing act specifying the use of this pictogram will come later in 2017. Elite will keep you posted on any updates or official release of the new regulation.

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