铝电解电容器假性短路检测系统的设计

The design of the detection system for the false short circuit of aluminum electrolytic capacitor

介绍了一种电容器假性短路检测系统,下位机以PLC为检测、控制核心,实现电容的充放电控制和充电电压采集,上位机接收采集数据后,采用复合滤波算法,分析确定充电参数,计算充电电压相对误差,并根据设定阈值判定产品是否合格。系统自动化程度高,克服了传统人工检测费时费力的缺陷,提高了产品检测的效率和可靠性,并且可实现产品的全检。

This paper introduces the design of pseudo short- circuit detecting system for capacitor. The slave computer takes PLC as the control core to realize the charge and discharge control of capacitor and charging voltage acquisition. After the host computer receiving acquisition data by composite filtering algorithm, the real-time analysis of PC machine determines the charging parameters and calculates the relative error of charge voltage, and determines whether the product is qualified or not. The system has a high degree of automation, efficiency and reliability of product testing. It can overcome the defects of the traditional manual inspection and realize the full inspection of the product.