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Device and method for testing time domain pulse shielding effectiveness of small shielding body

A technology of shielding effectiveness and time-domain pulses, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of huge measurement workload and achieve the effects of accurate measurement efficiency, objective and true measurement results, and simple operation steps

Inactive Publication Date: 2021-03-30
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Once the small shield works in a wide frequency band, since multiple frequency points need to be measured, the workload of the measurement is extremely huge

Method used

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  • Device and method for testing time domain pulse shielding effectiveness of small shielding body
  • Device and method for testing time domain pulse shielding effectiveness of small shielding body
  • Device and method for testing time domain pulse shielding effectiveness of small shielding body

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Embodiment Construction

[0075] In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

[0076] like Figure 4-Figure 7 As shown, a time-domain pulse shielding effectiveness testing device for a small shield provided by the present invention includes: a pulse transmitting system 1 , an antenna system, ...

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Abstract

The invention discloses a device and a method for testing time domain pulse shielding effectiveness of a small shielding body. The device for testing time domain pulse shielding effectiveness of the small shielding body comprises a pulse transmitting system, an antenna system, a shielding body to be tested and a receiving system. Through the specific structural arrangement, pulse signals instead of continuous wave signals are used as measurement signals, frequency information is obtained through time domain-frequency domain conversion, full-band measurement can be completed through one-time measurement, the principle is closer to the actual use condition, the measurement result is more objective and real, such that the time domain pulse shielding effectiveness test operation steps of: thesmall shielding body are simpler and more convenient, and the measurement efficiency is more precise.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a time-domain pulse shielding effectiveness testing device and method for a small shielding body. Background technique [0002] As a commonly used electromagnetic wave protection device, small shields are widely used in various industries such as communications, aviation, and aerospace. Common small shields include shielded chassis, shielded cabinets, and shielded cabins. A small shield generally refers to a shield whose maximum side length is less than 2m. Because of its small size, the test method for its shielding effectiveness is different from the traditional shielding case test. [0003] At present, the testing of the shielding effectiveness of small shields at home and abroad is mainly divided into three categories: one is the external radiating antenna method, that is, the transmitting antenna is placed outside the small shield, the receiving antenna is place...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/0835G01R29/0871
Inventor 张磊吴红森穆晨晨杨金涛
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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