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EMI Lab Services

Avalon Test Equipment has two (16’ x 16’ x 12’) A2LA approved, EMI/EMC semi-anechoic test chambers available for rent, and we have trained EMI engineers on staff who can perform in-house testing to MIL-STD-461 and DO-160 standards. Additionally, our chambers and test equipment are available for rent if you prefer to conduct your testing in our well-equipped facility.

If you require the utmost certainty of your measurement results, accuracy is critical. Operating out-of-specification can create a cascade of problems that may negatively impact your reputation and your bottom line.

MIL-STD-461 is a common electromagnetic interference (EMI) standard for military-grade equipment, which dictates the requirements for the electromagnetic compatibility (EMC) of devices and systems created for and used by the United States Department of Defense (DoD).

Avalon offers Commercial Testing Services, ISO 17025 MIL-STD-461 & Military EMC Testing. We maintain our accreditation through the American Association for Laboratory Accreditation (A2LA). The ability to test at this high level allows us to partner with you to meet your quality requirements and trust your test results.

We support the following testing capabilities.

MIL-STD 461 (REV E, F, and G)

CE102 Conducted Emissions, power leadsMIL-STD-461E, F, G
CS101 Conducted Susceptibility, power leadsMIL-STD-461E, F, G
CS114Conducted Susceptibility, bulk cable injectionMIL-STD-461E, F, G
CS115 Conducted Susceptibility, bulk cable injection, impulse excitationMIL-STD-461E, F, G
CS116 Conducted Susceptibility, damped sinusoidal, transients, cables, and power leadsMIL-STD-461E, F, G
RE102 Radiated Emissions, electric fieldMIL-STD-461E, F, G
RS103 Radiated Susceptibility, electric fieldMIL-STD-461E, F, G
Section 25 Electrostatic DischargeTRCA DO-160 E,G
RE101Radiated EmissionsMIL-STD-461
CE101Conducted EmissionsMIL-STD-461

OFFICIAL PARTNERSHIPS

Raymond EMC is a leading manufacturer of EMC test chambers and shielded enclosures. Their services include chamber relocation, upgrades, maintenance, consultation, engineering, and installation. Avalon is a proud representative in CA, NV, AZ, UT, CO, and NM.

WHAT IS EMC?

EMC is an acronym for Electro Magnetic Compatibility. All electronic devices have the potential to emit and be susceptible to electromagnetic fields. With the proliferation of electronic devices into everyday life, there is a huge potential for devices to interfere with each other. No electrical product or installation’s design can be considered complete unless all aspects of EMC are taken into account. This is not only important for common products such as television sets, computers, washing machines, etc.; it is crucial for complex products such as vehicles, aircraft, ships, and large industrial installations. These are very sensitive to EMC problems. Compatibility testing allows you to observe the interaction of all electrical and electronic equipment operating in the same environment.

Avalon Test Equipment not only carries EMC/EMI test equipment in stock for rental; we also have two anechoic chambers with engineering services to perform tests for you. With engineers on staff and the equipment in stock, Avalon can be a powerful partner to your business.

WHAT IS EMC TESTING?

EMC testing is the measurement of a device's immunity to RF emissions and RF emission levels to see if the device meets IEC, MIL-STD, DO-160, and other test standards.

EMC testing indicates to engineers whether a device is compatible with its electromagnetic environment and determines whether it will produce EMI. All electronics rely on technology which can be disrupted by rogue electromagnetic energy and thus undergo EMC testing to fulfill requirements for IEC, CISPR, and MIL-STDs (military standards) and achieve EMI compliance.

  

EMC/EMI TESTING PROCEDURE

 1. Find the Standards. You need to know what test standards apply to your products. Avalon has worked hard to make an easy test equipment product search by test standards. You can call us as well and speak to an EMI engineer to see what equipment you need for your test. We carry test equipment to test to these standards:

2. Perform Pre-Compliance Testing. You can find a third-party test lab to perform testing for you or you can work with Avalon for the MIL-461 and DO-160 testing needs since we have in-house engineers and testing services available with our two 17025 certified chambers. We also rent full compliance EMI receivers like the Rohde & Schwarz ESW44 or ESU40 (link to product pages). Our official rental partnership with IFI ensures we have all the RF amplifiers you will need for testing as well (link to IFI amplifiers).

3. Choose an EMC test lab. Be sure to choose an EMC lab that is A2LA 17025 accredited, like Avalon Test Equipment. EMC accreditation is essential to establishing the validity of your testing when placing products on the market.

TEST METHODS

To assess the EMC of a device or system, technicians perform four basic types of tests: radiated immunity radiated emissions, conducted immunity, and conducted emissions.

  • Radiated Immunity - Radiated immunity testing analyzes how a device will perform when exposed to the electromagnetic energy it will encounter in its environment.
  • Radiated Emissions - Radiated emissions tests measure the electromagnetic disturbance a device generates. Technicians want to ensure that the product’s emissions are below the relevant limits for its size and power.
  • Conducted Immunity - Gauges the response of a piece of equipment to electromagnetic energy that generates within another source and then accidentally is conducted along a cable or other conductor to the device under test.
  • Conducted Emissions - Measures the level of internal electromagnetic energy which may travel along a conductor and inflict EMI on other systems.

Rent or purchase the equipment required to support these test methods.

EMC TEST EQUIPMENT 

Engineers often send their products to be tested and then certified by labs with EMC accreditation. However, running multiple tests in house to fine-tune your products’ compatibility before sending them to a test lab can be cost-effective. You can rent test equipment from Avalon Test Equipment.

Conducted Emissions Testing

Conducted Emissions testing detects the presence of internal emissions of electromagnetic energy, which grow in strength as they are conducted along a power or signal conductor, generating interference. The conductor thus acts as an antenna that is “accidentally transmitting.” Generally, this testing method is applied to simulate internal interference found in power leads and antenna terminals. Avalon performs 17025 accredited testing services in house for CE101 and CE102 to MIL-STD-461. You can also rent test equipment.

Conducted Immunity Testing

A conducted immunity test monitors a device’s resistance to external interference generated by a conductor of EMI, like a power or signal cable. Engineers perform conducted immunity testing to discover how the instrument in question reacts to conducted EMI, and how it can be augmented to enhance its immunity.

Standards Relevant To Conducted Immunity

Radiated Emissions Testing

Radiated emissions testing measures the electromagnetic energy a product generates, simulating the interference a device may produce in its environment. Currents and switching voltages within all digital circuits unintentionally generate EMI. The challenge for engineers, then, is to mitigate this interference to the required levels. Radiated emissions testing is conducted either in open area test sites or in anechoic chambers.

Standards Relevant To Radiated Emissions

Radiated Immunity Testing

Radiated immunity testing simulates a device’s interactions with other electromagnetic fields it may encounter. Cell phones, radios, motors, or a plethora of other devices may emit EMI that causes damage or interferes with the signal of the device under test. RF amplifiers play an essential role in these tests because to generate an electromagnetic field that effectively mimics conditions for standards, the signal needs precise amplification.

Standards Relevant To Radiated Immunity