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2. 发明授权

US3979897A Method for locating conductor breaks during the two stage twisting of a communications cable 失效
标题翻译：在通信电缆的两级扭转期间定位导体断裂的方法
公开(公告)号：US3979897A
公开(公告)日：1976-09-14
申请号：US543541
申请日：1975-01-23
申请人： Dieter Vogelsberg , Horst Reil , Peter Froscher
发明人： Dieter Vogelsberg , Horst Reil , Peter Froscher
IPC分类号： G01R31/02 , H01B13/04 , D07B3/00
CPC分类号： G01R31/022
摘要： To localize a conductor break occurring in a conductor being twisted into a communications cable in a two stage twisting operation the faulty wire is first ascertained and the fault in that wire then subsequently located using a probe placed between the twisting apparatus and a take up drum, with the twisting process then stopped and the fault corrected. In one particular embodiment which is disclosed all wires are short circuited, for example, at the end of the twisted cable which is wound on the take up drum, the wires entering the twisting arrangement are divided into two groups of equal size with each of the groups connected to one end of an a-c voltage source symmetrical with respect to ground through high resistance series resistors with the voltage drop at the series resistors then detected to locate the faulty wire and the probing of the twisted structure done capacitively using a probe for determining the exact fault location.
摘要翻译：为了在两级扭转操作中将发生在绞合到通信电缆中的导体中的导体断路定位，首先确定故障线，然后使用放置在扭转装置和卷绕鼓之间的探针来定位该导线中的故障，扭转过程停止，故障更正。在所公开的一个具体实施例中，例如，在卷绕在卷绕滚筒上的扭绞电缆的末端，所有电线都短路，进入扭转装置的电线被分成两组，每组具有相等的尺寸连接到交流电压源的一端的组通过高阻抗串联电阻相对于地对称，然后检测到串联电阻器的电压降，以定位故障导线，并使用探头确定扭曲结构的探测，以确定精确故障定位。

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