基于压阻效应的电气连接器缩针检测方法

Shortening Detection Method for Electrical Connector Based on the Piezo-resistive Effect

电气连接器广泛应用于航空、电力、轨道交通等各个领域中,起到指令信号传递的作用,然而目前电气连接器在使用中存在普遍的缩针现象,极大影响了其可靠性和安全性。设计了一种电气连接器检测装置,并对所采用的压阻式薄膜传感器进行了标定。测试结果表明,检测装置能够准确检测电气连接器的缩针现象,并通过指示灯显示。该检测装置利用单点式压阻薄膜传感器将物理运动信号转换为电信号,具有较高的稳定性和频率响应特性。

Electrical connectors are widely used in aviation,electric power,rail transportation and other fields,it plays the role of transmission signal.But the phenomenon of needle reduction often appears in its use.It affects its reliability and safety.This paper designs an electrical connector detection device and calibrates the piezo-resistive film sensor.The results show that this detection device can be used to accurately detect the pinch phenomenon of the electrical connector and display it with the indicator light.The single point piezo-resistive film sensor is used in this device to convert the physical motion signal into an electrical signal.It is characteristic of high stability and frequency response.