摘要
介绍了利用大电流压降法测量自动转换开关动、静触头间接触电阻的方法。通过芯片AD7862同时采集标准电阻与接触电阻的电压信号,可消除恒流源波动对测量结果的影响。检测结果表明,该方法简单、有效,达到了比较高的精度。
A method to measure contact resistance of dynamic and static contacts for automaic transfer switching equipment by voltage drop with high current was introduced. The voltage signals of standard resistance and contact resistance were collected simultaneously by AD7862 chip, so the effect against measurement result for constant current source was eliminated, The measurement result shows that the method is simple and effective, with higher precision.
出处
《低压电器》
北大核心
2007年第9期48-50,共3页
Low Voltage Apparatus
关键词
自动转换开关
接触电阻
双路采集
automatic transfer switching equipment （ATSE）
contact resistance
double-channel collection
