Online measuring system for contact resistors of electric connector

Abstract

The invention discloses an online measuring system for contact resistors of an electric connector, which comprises a signal measuring unit, a signal conditioning unit, a data collecting unit and a computer. The contact resistors of the electric connector in environmental equipment are connected with the signal measuring unit, the signal conditioning unit, the data collecting unit and the computer in sequence. The electric connector is placed in an environmental equipment unit for reliability tests and is connected with the signal measuring unit through a leading-out wire; measuring signals are connected with the data collecting unit through the signal conditioning unit; and the data collecting unit is connected with a computer unit which is used for data storage, analysis, display, alert and the like. The system adopts the online measuring method of uninterrupted reliability tests, has simple operation and reliable running, realizes that multiple pairs of contact resistors can be continuously and automatically measured, can be used for monitoring the contact resistors on line when each electric connector factory and research organization conduct various tests to the electric connector, and can ensure the accuracy and the instantaneity of the measured data.

Description

technical field [0001] The invention relates to a system for measuring the performance of an electric connector, in particular to an on-line measuring system for the contact resistance of the electric connector. Background technique [0002] As a basic component, electrical connectors are used to realize electrical signals and controls, as well as connections between electronic and electrical equipment. They have a wide range of applications, a considerable number, and an important position in industries such as aviation, aerospace, and communications. During storage and operation, electrical connectors fail due to the combined effects of various environmental stresses such as temperature, vibration, humidity, rain, sand, dust, salt spray, corrosive gases, and working stress. [0003] In order to discover potential defects of electrical connectors, evaluate the reliability level of electrical connectors under various stresses, and ensure that electrical connectors can work r...

AI Technical Summary

Problems solved by technology

[0005] 1. The contact resistance is measured off-line. The measured result is the resistance value under static, single laboratory ambient temperature, humidity and other conditions. Although the result is qualified, it cannot guarantee that the contact resistance under various stresses can still be qualified.

That is to say, although the technical means of off-line measurement are simple, it cannot guarantee the accuracy of the measurement results.

[0006] 2. The life cycle of electrical connectors is long, offline measurement is adopted, the test equipment used is not highly automated, and the number of measurements required is too much, which limits the timeliness of measurement results, reduces experimental efficiency, is labor-intensive, and artificial Increased unreliable factors, limiting the timeliness of measurement results

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