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Relevant configuration of EMC test equipment

Author:admin   AddTime:2021-03-14

In order to better meet product functional requirements, reduce debugging time, and make products meet the requirements of electromagnetic compatibility standards, and will not cause electromagnetic interference to other devices in the system, this means that electromagnetic compatibility (EMC) design is indispensable. The configuration of the EMC test equipment is as follows:
(1) Radiated emission test---Requires the same spectrum analyzer or EMI receiver, a pair of antennas, cables and OATS (regional test site or shielded darkroom); absorption clamps manufactured or purchased for measuring interference power.
(2) Conducted emission test---Need a spectrum analyzer (or receiver), cable and LISN (line stabilization network, handmade or purchased), if possible, there should be a shielded room (at least A shielded tent) and an insulated table 80cm above the ground.

(3) ESD (electrostatic) immunity test---only ESD gun can reliably evaluate the result of this test.




(4) Harmonic test (and flicker test) --- If you want to perform a full compatibility test, you need special equipment (dedicated shielding box analyzer); but if it is only for evaluation, a portable harmonic analyzer can be used for An oscilloscope for FFT evaluation is sufficient.
(5) Radiated electrical immunity test---it requires equipment similar to radiated emission test, in addition to a signal generator, shielding box, amplifier, attenuator, field strength meter, and possibly a computer.
(6) Conducted immunity test---The required equipment is similar to (2) and (5), plus CND (heterogeneous coupling decoupling network), but no antenna is required.
(7) Surge immunity test.
(8) Electrical fast transient (EFT/Burst) immunity test.
(9) Voltage sag, short-term interruption and voltage change immunity test.
(10) Power frequency immunity test.

Absorbing Material:https://www.goodsmaterial.com/

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