井下杂散电流及接缝电阻集成测试仪的设计

Design of measuring instrument of stray current and seaming resistance of underground traction network of coal mines

井下杂散电流是指在井下架线电机车的运输系统中任何不按指定通路流动的电流,它是随机事件,而且是连续变化的量,是影响煤矿安全的主要因素之一.对井下杂散电流的测试是指导井下架线、防治杂散电流的前提,详细介绍了集成杂散电流及接缝电阻测试仪的设计原理和实现方法,并给出了主要的硬件电路和软件主流程图.

Stray current flow is defined as the flows in route in designated the wiring of electric locomotive transportation system. Stray current is a random event and changes continuously. Stray current is one of the elements that affect the safety of coal mines. To measure stray current is the prerequisite to direct wiring of traction network and prevention of stray current. The design principles and realization methods of measuring meter of stray current and seaming resistance between two rails in detail is introduced, and the main hardware schematic circuit diagram and software main flow chart are given.