RF EMF Radiation Immunity RS Test Program Testing Services

Radiofrequency electromagnetic field radiation immunity test is mainly based on national standards GB/T17626.3-2016, IEC61000-4-3:2010 “Electromagnetic compatibility test and measurement techniques radiofrequency electromagnetic field radiation immunity test” test, the standard is to carry out the electronic and electrical equipment subjected to radiofrequency electromagnetic field radiation when the immunity of the judgment based on the conformity test guidelines.

I. Radio frequency electromagnetic field radiation immunity related keywords:

1, amplitude modulation

The process by which the amplitude of a carrier wave changes according to a given law. 2, radio wave darkroom Installation of suction cups.

2, wave darkroom

Shielded room with wave-absorbing materials installed to reduce the reflection of waves from the inner surface.

3, full wave darkroom

Shielded room with wave-absorbing materials installed on the inner surface.

4、Semi-electrowave darkroom

In addition to the ground installation of reflective grounding plate, the rest of the surface are installed wave-absorbing materials shielded room.

5、Antenna

A signal source RF power emission into space or intercept the space electromagnetic field into an electrical signal converter.

6, balanced - unbalanced converter

A device used to convert unbalanced voltage and balanced voltage to each other.

7、Continuous wave

In steady state conditions, the safety of the same continuous oscillation of electromagnetic waves, can be interrupted or modulated to convey information.

8、Electromagnetic wave

Radiant energy produced by the oscillation of an electric charge, characterized by the oscillation of an electromagnetic field.

9, field strength

strength of the electric field, is put into the electric field at a certain point of the charge by the electrostatic force and its charge ratio, used to indicate the strength of the electric field and the direction of the physical quantities, such as V / m;

10, band

two limited frequency points between the frequency extension of the continuous interval.

11, polarization

The direction of the electric field vector of a radiation field.

12、Sweep

A continuous or step sweep over a range of frequencies.

RS interference source types

Small hand-held radio transceivers, stationary radio broadcasts, television station transmitters, vehicle-mounted radio transmitters, various industrial electromagnetic sources and other transmitters.

Test Rating:

The main test equipment of RF electromagnetic field radiation immunity test includes:

1. Wave dark room: the installation of wave-absorbing materials to reduce the internal surface of the wave reflection shielded room. Used to simulate the open field, to provide a good test environment for the test;

2. Signal generator, power amplifier: to provide the test frequency, waveform and output level signal;

3. Transmitter antenna: a signal source RF power transmitter to the space converter.

Test results judgment

Test results shall be categorized by loss of function or degradation of performance of the EUT. These classifications relate to performance levels specified by the manufacturer, the test applicant, or agreed upon between the manufacturer and the user. The recommended classifications are as follows:

a) Normal performance within the limits of the specifications specified by the manufacturer or commissioner or the user;

b) Temporary loss of function or temporary degradation of performance, but the EUT recovers on its own after the nuisance has ceased without operator intervention;

c) Temporary loss of function or temporary degradation of performance, but requires operator intervention to return to normal;

(d) Due to hardware or software damage, or loss of data and can not be self-recovery to the normal state of function reduction or loss.

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