接地降阻剂自动测试仪的设计与实现

Grounding resistance reducing agent automatic test instrument design and Implementation

针对接地降阻剂没有专门电阻率及工频耐流检测仪器,现行手工测试存在过程复杂和精度差等缺点,设计由多线程软件控制测试流程并能同时进行各种错误处理的自动测试仪,该测试仪由计算机、测试软件、恒流源、电压采集器、电流采集器、A/D转换电路和USB接口控制器组成,使接地降阻剂的电阻率及工频耐流测试过程具有很高的抗干扰性,操作更简单,检测工艺更科学。

There are no specific testing instruments for resistivity and power frequency of resistance-reducing agents. Nowadays manual testing has some defects such as complex processes and low precision. In this paper, a new automatic testing instrument with multi-thread and error-detecting mechanism has been designed. The hardware of this instrument includes a computer, a constant current source, a current data collector, A/D and a USB controller. The special automatic testing sot^ware have also developed with friendly interface. The testing results show that the new instrument has high precision and is anti- disturbing.