本文介绍了应用单片机和电容传感器技术来检测交流接触器铁芯气隙的快速测量仪。 关键词: 单片机; 电容传感器; 检测; 接触器; 铁芯间隙 Abstract : This paper introduces a fast tester which using single2chip computer and capacitor transducer technique to detect AC contactor’s core air gap Keywords : Single2chip computer ; Alternating current bridge ; Analog to digital converter ; Capacitor transducer ; Mean distance