IEC 61000-4-3 (Edition 4.0)
Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test
EMC Tests are tests that check the electromagnetic compatibility of a device or system. In the Electromagnetic Compatibility Test (EMC Test), it is aimed to operate any electrical and electronic device or system without being affected by and affecting other devices or systems in the environment. EMC Test is generally examined in two categories as Immune EMC Test and Emission EMC Test. Test limit values and test methods specified in the standards used in EMC Test applications may vary according to the features of the device or system.
Radiated, radio frequency, electromagnetic field immunity test specified in IEC 61000-4-3 standard is one of the Electromagnetic Compatibility (EMC) immunity tests (EMC Test).
IEC 61000-4-3 standard covers electromagnetic compatibility (EMC) immunity rules and test methods for electrical and electronic devices exposed to electromagnetic energy emitted by radiation.
The purpose of the IEC 61000-4-3 standard is to establish a common and repeatable basis for the evaluation of the working qualities of electrical and electronic devices exposed to radio frequency electromagnetic fields.
Radiated, radio-frequency, electromagnetic field immunity test :
Radiated Immunity Test evaluates the working qualities and performance of the device under test when exposed to a strong electromagnetic field.
Radiated Immunity EMI Testing is performed in the room without an echo. This room is covered with Radio Frequency absorbers to reduce reflections from the interior surfaces.
The test setups may vary depending on whether the tested device is of the desktop or floor standing type. For desktop devices, a table made of 0.8 m high wood is located on the ground reference plane. For devices standing on the floor, the device under test is placed on a non-conductive support approximately 0.1 m thick. It is preferred that the distance between the antenna and the device under test be 3 m.
The experiment levels of Radiated Immunity test, which is one of the Electromagnetic Compatibility Tests (EMC Test), Radio Frequency, Electromagnetic Field Immunity (Radiated Immunity) test are as follows;
|
Level
|
Field (V/m) |
|
1 |
1 |
|
2 |
3 |
|
3 |
10 |
|
x |
Special |
|
"X" is a free level. This level should be specified in the device introduction. |
|
The values given in this chart are modulated at 80% amplitude with a sine wave of 1 kHz to simulate real effects.
The Radiation, Radio Frequency, Electromagnetic Field Immunity Test, which is one of the Electromagnetic Compatibility Tests (EMC Test), is carried out by directing the signal generating antenna and the antenna that is transmitted by the signal generator and amplifier to each of the four edges of the device under test.
