Electromagnetic Radiation Tolerance Test (RS)

2018-07-23 12:09:01 SUSHI GUANGBO TEST TECHNOLOGY CO.,LTD 已读
Electromagnetic Radiation Tolerance Test (RS)
 
Radiation Immunity (RS) Overview
 
This standard mainly introduces the international standard IEC61000-4-3:2006, corresponding to the national standard GB/T17626.3:2006 "electromagnetic compatibility test and measurement technology RF electromagnetic field radiation immunity" test method.
 
Radiation immunity test purpose and application
 
The main source of disturbance involved in this standard is the electromagnetic field generated by the RF source from 80MHz to 2000MHz. Such as radio, television, fixed or mobile radio transmitters and electromagnetic fields generated by various industrial sources (the current upper limit of the standard has been increased to 6000MHz, which is related to the frequency of wireless communication devices currently in use, many wireless communication devices use 2.4GHz or 5.6GHz frequency). The electrical and electronic equipment operating in the electromagnetic field is subjected to the electromagnetic field, thereby affecting the normal operation of the equipment. Therefore, the purpose of this standard is to establish a public reference for evaluating the radiated immunity of radio frequency electromagnetic fields, providing a basic reference for professional technical committees or users and manufacturers of related products.
 
Common Terms of Radio Frequency Electromagnetic Field Radiation Immunity (RS) Test
 
(1) anechoic chamber
 
Shielding room for absorbing absorbing material to reduce reflection of internal surface waves
 
(2) Half-wave darkroom
 
Except for the ground-mounted reflective grounding plate, the other inner surfaces are all equipped with a shielding room for the absorbing material.
 
(3) Antenna
 
A device that transmits RF signal source power to space or receives spatial electromagnetic energy and converts it into an electrical signal.
 
(4) Far field
 
The power density generated by the antenna is approximately the electromagnetic field region inversely proportional to the square of the distance.
 
(5) Field strength
 
Field strength is used for far field measurements. The measurement can be an electric field component or a magnetic field component, which can be expressed in V/m, A/m or W/m2.
 
(6) Polarization
 
The direction of the electric field vector of the radiated electromagnetic field.
 
(7) Scanning
 
Sweep through a range of frequencies continuously or step by step.
 
Radio frequency electromagnetic field radiation immunity (RS) test level and selection
 
Radio frequency electromagnetic field radiation immunity (RS) test level
 
Frequency range 80MHz~1000MHz
Radiated immunity test level Radiated immunity test field strength (V/m, field strength unmodulated)
1
2
3
X 1
3
10
specific
1) X is an open level and can be specified in the product specification
Protects the test level against digital radiotelephone RF emissions.
 
Radio frequency electromagnetic field radiation immunity (RS) test level
 
Frequency range 800MHz~960MHz and 1400MHz~2000MHz Radiated immunity test level Test field strength (V/m, field strength unmodulated) 1234X131030 Specific 1) X is an open level, which can be specified in the product specification
Ø Category 1: Low electromagnetic radiation environment. The level transmitted by a local radio/radio/TV station and a low-power transmitter/receiver located 1 km away is a typical low level.
 
Ø Category 2: Medium electromagnetic radiation environment. The use of low-power portable transmitter receivers (typically rated less than 1W), but limited to use near the equipment, is a typical business environment.
 
Ø Category 3: Severe electromagnetic emission environment. Portable Transmitter (typically rated 2W or greater) for access to equipment but at less than 1m. There are high-power broadcast transmitters and industrial, scientific and medical equipment near the equipment, which is a typical industrial environment.
 
Ø × Class: × is an open level as defined by negotiation or product specifications and product standards.
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