EMS (electro magnetic immunity) - electromagnetic immunity test
The purpose of this test is to detect whether electrical products can work stably in electromagnetic environment without being affected.
What is the main content of EMS test?
ESD - static immunity test
RS - RF electromagnetic radiation immunity test
The measurement of immunity of conduction disturbance induced by CS RF field
Dip - voltage sag, short-time interruption and voltage change immunity test
Surge immunity test
EFT - Immunity Test of electric fast transient pulse group
Pfmf - power frequency magnetic field immunity test
Stray definition: refers to the radiation (both far-end radiation) in the discrete frequency except carrier frequency and side band and adjacent channel caused by normal modulation and switching transient when the standard test signal is used for modulation. Stray radiation can be divided into conduction type and radiation type according to its source.
Conduction stray: refers to the level power of any discrete signal measured on 50 ohm load at the connector of antenna.
Radiation stray: stray disturbance caused by the shell, structure and interconnection cable of the test equipment. The test conditions are preferably carried out in the anechoic chamber or outdoors.
