West Michigan IEEE EMC Chapter Meeting

Transcription

1 West Michigan IEEE EMC Chapter Meeting Intertek On-site Demonstration- Dale Wine

2 Global Network: Intertek Group Countries Locations Staff ,000+ Floated May 2002 LSE: ITRK (4.5 GBP) FTSE 100, Support Services Sector AMERICAS EMEA APAC 2

3 An Extensive Global Network More than 1,000 laboratories and offices Over 30,000 people More than 100 countries FTSE 100 company in the Support Services sector Market capitalization at 3.9 billion Revenue generation of over 1.7bn in

4 Intertek vs North American Certifiers The perception is that Intertek is a Smaller lab than its competitors. In reality, Intertek is more than twice the size of its North American competitors. SOURCE: Intertek 2010 annual report, CSA annual report, UL IRS Form 990 (submitted 2010) Billions of products globally feature our certification marks More than 2,500,000 annual tests, inspections, certifications Market access to nearly all 195 countries on 6 of 7 continents 91 Product Safety, Performance and EMC laboratories, globally More proprietary certification products than any other certifier from ETL & Energy Efficiency to Quality/Performance & RoHS 4

5 Our Roots As one of Thomas Edison s companies, we began testing light bulbs in Over 100 years later, we have built the largest network of product safety and EMC laboratories : Edison s Testing Bureau est; later named ETL 1925: SEMKO est 1927: Chas Warnock Co. founded 1961: SEMKO joins CB Scheme: today s largest issuer 1965: WH successfully challenges UL, CSA in Canada: sets precedent 1989: ETL OSHA recognized NRTL 1992: Inchcape issues first ISO 9000 certificate 2004: Entela acquired as entrée into automotive 2006: ETL is the fastest Growing certification Mark in North America 5

6 DornerWorks DornerWorks is a premier provider of electronic engineering services for the aerospace, medical, automotive, and industrial markets. When your project needs experts who can provide seamless integration of embedded software and hardware, updating an existing system or starting a new one DornerWorks delivers what you need, how you need it, and when you need it! Our specialties include: Electronics Hardware Development Single Board Computers Embedded Software Development Platform-Enabling Software Middleware: Multi-touch Custom Logic Engineering HMI Performance Laboratory 6

7 EMC Network Intertek is a global leader in EMC testing. Addressing your specific product requirements whether military, aerospace, IT, industrial, automotive, renewable energies, appliances & electronics, or medical we provide direct access to engineers who have product and industry-specific expertise to ensure that your product meets compatibility standards for virtually any market around the world. Intertek operates 23 EMC testing facilities the world s largest network of EMC test labs featuring 3m, 5m and 10m semianechoic chambers, as well as 3m, 10m and 30m open area test sites (OATS). Providing 24-hour turnaround on quotes and same-day test data, our specialized EMC engineers possess years of experience and are equipped to meet your testing needs, including emissions, immunity and susceptibility testing. 7

8 Questions? 8

9 IEEE West Michigan EMC Chapter Meeting Thursday 9/27/2012 Welcome!! Mike Koffink Umar Tabbsum 9

10 Third Party Labs Third party labs often have a different perspective on the EMC industry because we see many different types of products Regulators for some industries, test service for others Third Party labs often are a good source of information Knowing your product is important Discuss your product with the lab engineers Be prepared to fail and troubleshoot Lab should have some diagnostic tools 10

11 Importance of Radiated Emissions Testing Interference caused by product is a big concern and often regulated by law. Radiated emissions are often considered the ghost in the machine as it is the electromagnetic signature of the product. Almost any change to the circuitry could effect the emissions profile Chassis design important as well. EMC Engineers often get resistance from peers or management because of costs. Do you homework. Design for Emissions control up front. There will be less impact later 11

12 Commercial Products - Follow harmonized test standards FCC, IEC - Emissions concerns are interference with other products and signal reception - 10 m test distance, 3 meter allowed - Turntable - 1m to 4m antenna height - Generally starts at scan at 30 MHz - OATS or ALSE allowed 12

13 Automotive Specific OEM Standards SAE CISPR 25 FCC exclusion EU has type approval e mark program 1m test distance Fixed table position Fixed antenna heights Specific equipment sometimes called out No OATS Concern is the vehicle environment 13

14 Military and Aerospace Mil Std 461 Different limits for different product types and procurement Scan starts at 2MHz RTCA DO 160 Standards and requirements can be tailored 1m test distance 1m test height Fixed table set up ALSE Concern is interference in critical applications 14

15 RE Difference between MIL-STD-461F and DO-160G Prepared by U.Tabbsum 15

16 Difference between test methods of DO160G and MIL-STD-461F Bandwidth and Measurement Time EUT Test Setup Antennas Configuration 16

17 DO160G BW and Measurement Time Frequency Band 6dB BW Minimum Dwell Time (seconds) Minimum Sweep Time for Frequency Band (seconds).150 to 30MHz 1 khz N/A 30MHz to 100MHz 10 khz N//A 100 to 400MHz 10 khz to.96 GHz 100 khz GHz to 6GHz 1 MHz

18 MIL-STD-461F BW and Measurement Time Frequency Band 6dB BW Minimum Dwell Time (seconds) 10kHz to 150kHz 1kHz kHz to 30MHz 10kHz MHz to 1GHz 100kHz Above 1GHz 1MHz

19 MIL-STD-461F General EUT Test Setup 50uH LISN 10cm 2 meter 19

20 DO-160G General EUT Test Setup 10uF FeedThru Cap 5uH LISN < or = 1 m 20

21 RE Test Methods The Anechoic Chamber Method Reverberation Chamber Method 21

22 Reverberation Chamber Cavity resonator with high Q factor Field Uniformity needs to be met per Prior to EUT testing, Reverberation Chamber Insertion Loss is measured. Method is described in of DO160G. 22

23 Antenna Configuration per DO160G Center antenna 0.3 meter above the ground plane. 0.9 meter between the edge of copper table and antenna. Distance between absorber and antenna is 30cm. Preamp 23

24 Antenna Configuration per MIL-STD-461F 24

25 Ambient Requirements Per DO160G, it is required only if emissions are greater than 3dB below the selected category limit. 461F, Ambient levels shall be atleast 6dB below per client specification. 25

26 TILE Software TILE: Totally Integrated Lab Environment Design, perform, report and archive complex EMC tests Flow chart to simplify the user interface. Instrument Control: General Purpose Interface Bus (GPIB)/IEEE482 26

27 12VDC Motor Plots per DO-160G 27

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32 Note: NAN: Not a number dbuv/m Peak_Mono Margin_Mono Peak_Bicon_V_1 Margin_Bicon_V_ MHz NAN NAN MHz NAN NAN MHz NAN NAN MHz NAN NAN MHz NAN NAN MHz NAN NAN MHz NAN NAN MHz NAN NAN

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