Introduction to EMC Testing

What is EMC Testing?

Electromagnetic compatibility (EMC) Testing enables a device to operate smoothly in the environment for which its intended, along with the presence of other electrical devices or sources of Electromagnetic Interference. A device is deemed to be EMC compliant if it does not affect the electromagnetic environment to the extent that the functions of other systems and devices are negatively affected.

EMC Testing Routine

The EMC testing routine depends on the nature of the device being tested, its intended application and the regulatory requirements for its use. Electromagnetic phenomena that is replicated through EMC testing includes:

• Electrostatic discharges associated with static electricity
• Magnetic fields, like the ones radiating from electrical wires
• Electromagnetic surges due to a lightning strike
• Fast transients caused by electrical switches, relays and motors, fluorescent lamp ballasts
• Conducted and radiated electromagnetic noise
• Voltage drops due to a burnout or other power interruption

A wide range of equipment is used to imitate the above conditions and test the ability of a device. A typical EMC testing lab may utilize surge generators, power amplifiers, spectrum analyzers and more such equipment.

Most Common Applications for EMC/EMI Testing:

• Military/Aerospace Devices: EMC Testing requirements for military equipment are outlined in MIL-STD-461. It also lays down the requirements for electromagnetic susceptibility and emissions testing.
• Consumer Goods: Consumer goods like microwaves, laptops, cell phones etc., all must undergo EMC/EMI testing to make sure they are safe for use. EMC Testing of consumer goods ensure that they do not cause any harmful interference and accept interference without causing unwanted operation in real-world conditions.
• Medical Devices: EMC testing is required for managing the risks in the manufacturing of medical devices. The FDA requires that all medical devices undergo EMC testing as per the European Standard IEC 60601-1-2. In the European Union (EU), all medical devices require CE marking, which requires both emissions testing and immunity testing as per IEC 60601-1-2.

ITC India is an NABL accredited testing laboratory providing EMC Testing Services along with many other testing services as per the client’s requirement. Contact b.vig@itcindia.org to get your TESTING QUOTE TODAY or visit our website https://itcindia.org/emc-emi-testing/ to know more about EMC Testing.