Unlike the lightning produced in nature, HIRF (High Intensity Radio Field) is an electromagnetic environment problem caused by human activities. For aircraft, HIRF environment is by radar, radio, radio and television transmitter, and other ground, surface, air radio frequency (RF) transmitter transmission electromagnetic radio frequency energy, characterized by wide frequency coverage, high electric field strength, long time, will harm to the normal operation of various aircraft electrical and electronic systems.
GRGTEST HIRF Test Solution
GRGTEST The construction of HIRF high field strength reverberation chamber was started in 2016, with the test frequency of 100 MHz-18GHz. The design size is according to the test requirements of DO-160G, and the length, width and height are 8m 5m 3.65m. The uniform domain size of the test is 3m 3m 2m, and the maximum field strength is 6000V/m (which can meet all class grades of DO-160G except CatL), meeting the requirements of HIRF test.
In addition, GRGTEST has years of technical accumulation and precipitation, which can meet a series of aviation airborne test requirements including lightning induction transient sensitivity, power input, induction signal sensitivity, etc.
Relevant regulatory standards for the HIRF testing
RTCA DO-160: Aviation airborne equipment test standard recognized at home and abroad
IEC 61000-4-21: The international standard of electromagnetic compatibility (EMC) commonly used internationally
Service case
- Undertaking the C919 A-class system-level HIRF test is the first civil aircraft system-level HIRF test carried out by DO-160G in China, opening a new chapter of airworthiness certification test for domestic aircraft with the system as the carrier.
- Provide 3000V/m HIRF test, indirect lightning effect test, power characteristic test and a full set of C919 products.
- Responsible for the HIRF test of ARJ 21 airborne equipment, help customers to identify sensitive frequency bands, locate problems and analyze problems, and finally passed the test successfully.
- It undertakes the electromagnetic compatibility test of more than 30 products of AG 600 aircraft, providing technical support for the successful first flight of the world's largest amphibious aircraft in development.