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发明名称
机车辅助电路自动择极测试笔
摘要
本实用新型公开了一种能够自动识别机车辅助电路、电器的极性,并用红、绿色发光二极管显示被测试电器正、负极的测试装置,当测试笔触头(1)对机车辅助电路的电器进行测试时,该红色发光二极管(2)与绿色发光二极管(6)可处于一个导通另一个截止的状况,被测试的电器呈正极电时红色发光二极管(2)指示测试对象呈正极电,被测试的电器呈负极电时绿色发光二极管(6)指示测试对象呈负极电。
申请公布号
CN2417091Y
申请公布日期
2001.01.31
申请号
CN00231798.2
申请日期
2000.03.30
申请人
杜明义
发明人
杜明义
分类号
B61K9/08;G01R31/02
主分类号
B61K9/08
代理机构
代理人
主权项
1、一种由鱼嘴钳、降压电阻组装的双极接地夹与由塑料外壳、测试触头、限流电阻、红、绿发光二极管、导线、鱼嘴钳组装的测试笔共同组成的机车辅助电路自动择极测试装置,其特征在于;它有一鱼嘴钳7连接辅助电路的正极,鱼嘴钳11连接辅助电路的负极,使降压电阻8与降压电阻11电路串联,具有同时采集机车辅助电路正、负极电压信号的状态。
地址
100071北京市丰台区南开西里2号楼32号
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