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Automated test method and system for aircraft cabin protection performance under hirf conditions

A technology for automated testing and protection performance, applied in aircraft component testing, measuring devices, electromagnetic field characteristics, etc., can solve problems such as large test results, difficult protection performance evaluation, and easy omission of vulnerable areas of the cabin, and achieves a high level of test accuracy. Effect

Active Publication Date: 2019-06-14
上海神添实业有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic test method and system for the protection performance of aircraft cabins under HIRF conditions, to solve the problems of inaccurate test results, difficult evaluation of protection performance, and easy omission of vulnerable areas of the cabin due to the large size of the aircraft cabin

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  • Automated test method and system for aircraft cabin protection performance under hirf conditions
  • Automated test method and system for aircraft cabin protection performance under hirf conditions
  • Automated test method and system for aircraft cabin protection performance under hirf conditions

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Embodiment Construction

[0048] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0049] Such as figure 1 Shown, under a kind of HIRF condition, the automatic test method of aircraft cabin protective performance, it comprises the following steps:

[0050] S1. Set the azimuth angle between the aircraft cabin and the emission source, simulate the HIRF environment for the emission source, and set coordinate observation points at different positions in the cabin to obtain the X-axis, Y-axis, Z-axis and the overall coordinates of different coordinate points. Field strength amplitude; in this embodiment, the distance from the emission source to the cabin is more than 1.5 times the size of the cabin, which meets the full irradiation and far-field test conditions for the cabin, and 8 coordinate observation points are set, and the observation points are evenly distributed At the top of the monitoring ...

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Abstract

The invention discloses an automatic test method for the protection performance of an aircraft cabin under an HIRF condition. The method comprises the steps that S1 the azimuth angle of the aircraft cabin and an emission source is set to carry out HIRF environment simulation on the emission source, and coordinate observation points are arranged at a number of different positions in the cabin; S2 a cabin protection performance test is carried out and the emission power of the emission source is recorded in real time to acquire electromagnetic field strength values in the cabin at different coordinate observation points, and the maximum electromagnetic field strength value E1max in the cabin is acquired through comparison; S3 a cabin-free field strength calibration test is carried out, and the electromagnetic field strength value E of the coordinate position of the maximum electromagnetic field strength value measured in the step S2 in a coordinate region is acquired according to the emission power in step S2; S4 E1 is compared with E1max to acquire the protection performance S1 under the azimuth; and S5 the azimuth is changed to acquire the minimum value of the protection performance under different azimuths, namely the protection performance of the aircraft cabin under the HIRF condition. The method has the advantages that the problem of difficult aircraft cabin protection performance test is solved.

Description

technical field [0001] The invention relates to the technical field of electromagnetic environment effects, in particular to an automatic test method and system for the protection performance of an aircraft cabin under HIRF conditions. Background technique [0002] High-intensity radiation field (HIRF) refers to the radiation of high-power transmitters such as radar, radio, and navigation on the ground, offshore platforms, or aircraft. It is characterized by wide frequency band and long action time. The inherent characteristics of high-intensity radiation fields make electronic equipment in aerospace systems face potential electromagnetic damage, which is mainly reflected in the coupling between external strong electromagnetic fields and electronic systems, including interference, flipping, blocking, burning, etc. In recent years, due to the development of electronics, electricity, wireless communication, radar detection and other technologies and the increasing application ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08B64F5/60
CPCG01R29/0835G01R29/0871G01R29/0892
Inventor 石国昌廖意应小俊张元
Owner 上海神添实业有限公司
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