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Method and device for testing statistical uniformity of space electric field of boundary deformation reverberation chamber

A space electric field and testing device technology, applied in the direction of electromagnetic field characteristics, etc., can solve the problems of cumbersome testing process, and achieve the effect of low professional requirements and simple measurement process.

Pending Publication Date: 2022-03-01
ARMY ENG UNIV OF PLA
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0028] (1) The test process is cumbersome and requires a lot of data to judge whether the reverberation chamber is uniform

Method used

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  • Method and device for testing statistical uniformity of space electric field of boundary deformation reverberation chamber
  • Method and device for testing statistical uniformity of space electric field of boundary deformation reverberation chamber
  • Method and device for testing statistical uniformity of space electric field of boundary deformation reverberation chamber

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Experimental program
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specific Embodiment

[0091] A reverberation chamber with a geometric size of 2.5m×1.8m×1.5m was constructed using copper-nickel fiber cloth, and a stepping motor was used to drive a surface of 2.5m×1.8m to reciprocate along its normal direction with a movement range of 400mm , using the above method to test, the data and results are shown in Table 1:

[0092] Table 1

[0093]

[0094]

[0095] The results obtained by using the uniformity test method in the background technology are shown in Table 2:

[0096] Table 2

[0097]

[0098] It can be seen from Table 1 that the spatial electric field distribution is not uniform at 200MHz, and the field distribution is uniform at 600MHz and 800MHz.

[0099]Using the test method mentioned in the background art, the spatial electric field distribution is uniform when the standard deviation is less than 3dB, and uneven when it is greater than 3dB. It can be seen from Table 2 that the spatial electric field distribution is not uniform at 200MHz, an...

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Abstract

The invention relates to a method and a device for testing statistical uniformity of a space electric field of a boundary deformation reverberation chamber. The method comprises the following steps: transmitting a signal with a set frequency into the boundary deformation reverberation chamber in real time; the shielding cloth of the boundary deformation reverberation chamber deforms in real time; acquiring the signal intensity of the reflection signals with the set frequency in real time to form an intensity set; and determining the statistical uniformity of the space electric field of the boundary deformation reverberation chamber under the set frequency according to the intensity set. The measuring process is simple, and the professional requirement for users is not high.

Description

technical field [0001] The invention relates to the field of statistical uniformity detection of a space electric field, in particular to a method and device for testing the statistical uniformity of a space electric field in a boundary deformation reverberation chamber. Background technique [0002] As an optional electromagnetic compatibility test platform, the reverberation chamber has been included in many international and domestic standard organizations. Compared with traditional electromagnetic compatibility test platforms such as anechoic chambers and open fields, reverberation chamber technology has advantages in electromagnetic environment simulation, test efficiency, and project cost, and is currently a research hotspot in the world. In the usual sense, the reverberation chamber is a closed rectangular cavity constructed of metal materials, and one or more mechanical stirrers are installed inside the cavity to change the boundary conditions of the electromagnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/08
Inventor 程二威陈亚洲王平平赵敏周星曲兆明张怡
Owner ARMY ENG UNIV OF PLA
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