发明授权
US4013948A Discharge detection system for determining the distance to a dielectric
weak point in a cable
失效
用于确定电缆中电介质弱点的距离的放电检测系统
- 专利标题： Discharge detection system for determining the distance to a dielectric weak point in a cable
- 专利标题（中）： 用于确定电缆中电介质弱点的距离的放电检测系统
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申请号： US604028申请日： 1975-08-12
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公开(公告)号： US4013948A公开(公告)日： 1977-03-22
- 发明人: Shigenobu Tanaka , Hikaru Yasuhara , Munesuke Oguchi
- 申请人： Shigenobu Tanaka , Hikaru Yasuhara , Munesuke Oguchi
- 申请人地址： JA Tokyo
- 专利权人： The Fujikura Cable Works, Ltd.
- 当前专利权人： The Fujikura Cable Works, Ltd.
- 当前专利权人地址： JA Tokyo
- 优先权： JA49-96832 19740823
- 主分类号： G01R31/10
- IPC分类号： G01R31/10 ; G01R31/11 ; G01R31/08
摘要：
The distance from the end of the cable to the dielectric weak point of said cable is measured by applying a D.C. high voltage to said cable and generating a discharge at the dielectric weak point, obtaining a pair of pulse signals one by differentiating a surge signal generated and the other reflected at said dielectric weak point, limiting the amplitude of said pair of pulse signals, and measuring the interval between said pair of pulse signals.
公开/授权文献
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