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Coaxial connector electromagnetic shielding effectiveness testing device

A technology of coaxial connectors and testing devices, applied in the direction of measuring devices, electromagnetic field characteristics, instruments, etc., to reduce the lower limit cut-off frequency and achieve adjustable effects

Pending Publication Date: 2021-11-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of how to reduce the difficulty of testing the electromagnetic shielding effectiveness of connectors, the present invention provides an electromagnetic shielding effectiveness testing device for coaxial connectors

Method used

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  • Coaxial connector electromagnetic shielding effectiveness testing device
  • Coaxial connector electromagnetic shielding effectiveness testing device
  • Coaxial connector electromagnetic shielding effectiveness testing device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0036] The evaluation of electromagnetic shielding performance is mainly realized by measuring the surface trans...

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Abstract

The invention discloses a coaxial connector electromagnetic shielding effectiveness testing device, solves the problem of how to reduce the difficulty of electromagnetic shielding effectiveness testing of a connector, and belongs to the technical field of electrical circuit element detection. The device comprises a connecting line, an inner circuit tube, an outer circuit tube, a matching impedor and a network analyzer; one end of the connecting line is connected with the signal output end of the signal source, the connecting line is arranged in the inner circuit tube, the other end of the connecting line is connected with a port on the same side of the inner circuit tube and one end of the coaxial connector to be tested at the same time, and the other end of the coaxial connector to be tested is connected with one end of the matching impedor; the other end of the matching impedor is connected with a measurement signal input end of the network analyzer; one port of the outer circuit tube is connected with the outer wall of the inner circuit tube, and the other port of the outer circuit tube is connected with a signal input port of the network analyzer; the matching impedance among the signal source, the inner circuit tube and the outer circuit tube is equal to characteristic impedance of the network analyzer.

Description

technical field [0001] The invention relates to a coaxial connector electromagnetic shielding efficiency testing device, which belongs to the technical field of electric circuit component detection. Background technique [0002] As a node component of the electrical circuit interconnection system in aircraft, high-speed rail EMU and other equipment, electrical connectors are responsible for connecting various cable segments and transmitting signals. With the further development of the trend of all-electric equipment, the electromagnetic environment inside various equipment is becoming increasingly complex, and higher requirements are placed on the electromagnetic shielding performance of electrical connectors and other devices. Unlike cables, connectors are not protected by sheaths and are basically exposed to the environment, and the connection between connectors is susceptible to vibration. Therefore, after long-term vibration wear and chemical corrosion, the electromagne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/0835
Inventor 张刚何鑫张子恒李明王立欣吕超陈潇
Owner HARBIN INST OF TECH
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