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West Michigan IEEE EMC Chapter Meeting

Intertek On-site Demonstration- Dale Wine

9.27.12

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Global Network: Intertek Group

AMERICAS EMEA APAC

Countries Locations Staff

110+ 1000+ 30,000+

Floated May 2002 – LSE: ITRK (4.5 GBP)

FTSE 100, Support Services Sector

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An Extensive Global Network

More than

1,000laboratories and offices

Over

30,000people

More than

100countries

•FTSE 100 company in the Support Services sector

•Market capitalization at £3.9 billion

•Revenue generation of over £1.7bn in 2011

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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 2009-2010 annual report, UL IRS Form 990 (submitted 2010)

Billions of products globally feature our certification marksMore than 2,500,000 annual tests, inspections, certificationsMarket access to nearly all 195 countries on 6 of 7 continents

91 Product Safety, Performance and EMC laboratories, globallyMore proprietary certification products than any other certifier – from ETL & Energy Efficiency to Quality/Performance & RoHS

Intertek vs North American Certifiers

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Our Roots

• As one of Thomas Edison’s companies, we began testing light bulbs in 1896.

• Over 100 years later, we have built the largest network of product safety and EMC laboratories.

1896 1925 1955 1965 1989 2004 2007

1896: 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 2004: Entela

acquired as entrée into automotive

2006: ETL is the fastest Growing certification Mark in North America1992: Inchcape

issues first ISO 9000 certificate

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DornerWorksDornerWorks 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 ComputersEmbedded Software Development

• Platform-Enabling Software

• Middleware: Multi-touchCustom Logic Engineering

HMI Performance Laboratory

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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 semi-anechoic 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.

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Questions?

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IEEE West Michigan EMC Chapter MeetingThursday 9/27/2012

Welcome!!

Mike Koffink

Umar Tabbsum

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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

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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

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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

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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

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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

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RE Difference between MIL-STD-461F and DO-160G

Prepared by

U.Tabbsum

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Difference between test methods of DO160G and MIL-STD-461F

Bandwidth and Measurement Time

EUT Test Setup

Antennas Configuration

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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 0.015 N/A

30MHz to 100MHz 10 kHz 0.015 N//A

100 to 400MHz 10 kHz 0.015 9

.400 to .96 GHz 100 kHz 0.015 1

.96GHz to 6GHz 1 MHz 0.015 1

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MIL-STD-461F BW and Measurement Time

Frequency Band 6dB BW Minimum Dwell Time (seconds)

10kHz to 150kHz 1kHz 0.015

150kHz to 30MHz 10kHz 0.015

30MHz to 1GHz 100kHz 0.015

Above 1GHz 1MHz 0.015

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MIL-STD-461F General EUT Test Setup

50uH LISN

2 meter

10cm

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DO-160G General EUT Test Setup

5uH LISN

10uF FeedThru Cap

< or = 1 m

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RE Test Methods

The Anechoic Chamber Method

Reverberation Chamber Method

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Reverberation Chamber

Cavity resonator with high Q factor

Field Uniformity needs to be met per 20.6.3

Prior to EUT testing, Reverberation Chamber Insertion Loss is measured.

Method is described in 21.6.2 of DO160G.

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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

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Antenna Configuration per MIL-STD-461F

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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.

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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

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12VDC Motor Plots per DO-160G

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dBuV/m Peak_Mono Margin_Mono Peak_Bicon_V_1 Margin_Bicon_V_1

108.03 MHz 25.002 NAN NAN 25.526 -0.524

108.05 MHz 25.003 NAN NAN 26.984 -1.981

108.22 MHz 25.015 NAN NAN 26.52 -1.505

108.39 MHz 25.026 NAN NAN 25.676 -0.65

108.4 MHz 25.027 NAN NAN 26.738 -1.711

108.44 MHz 25.03 NAN NAN 26.461 -1.431

108.66 MHz 25.044 NAN NAN 26.612 -1.568

108.72 MHz 25.048 NAN NAN 28.569 -3.521

Note: NAN: Not a number

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