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发明名称
小型发光发音低压试电笔
摘要
一种发光发音低压试电笔,是验电中防止人身触电必须常备的测量仪器,包括探头1、笔杆2、笔帽3、其特征在于笔帽3内安有发音装置,它克服了传统试电笔不发音,而发出的光较弱,在露天或灯光下很难看清,容易判断失误等缺陷。本试电笔是在传统验电的基础上,把一部分被检验的电信号分流,输送给发音装置,触发发音电路工作的。
申请公布号
CN2067836U
申请公布日期
1990.12.19
申请号
CN90203762.5
申请日期
1990.03.31
申请人
王守信
发明人
王守信
分类号
G01R19/155
主分类号
G01R19/155
代理机构
代理人
主权项
一种小型低压试电笔,包括:探头(1)、绝缘外壳(2)和(3)、发光装置、发音装置、选择开关(5)及人体触摸点,其中:发光装置包括氖管和电阻(R1);发音装置包括电源(4)、线路板(6)、发音器(7)及外壳上的发音孔(8)。其特征在于:在现有的氖管发光式的试电笔的基础上,加安了发音装置。
地址
100029北京市北三环东路17号化工学院附中
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