The application results show that the instrument can perfectly satisfy the requirement for automatic testing the communication cable fault point rapidly in a local telephone network.
实践证明，在区域性电信网络中，电信电缆监测仪可以快速地实现电缆故障点自动定位。
Based on the investigation of development state of the cable sheath fault location devices home and abroad, a new cable sheath fault testing device is designed in this thesis.
本文在对国内外电力电缆护层测距仪的现状进行分析的基础上，设计了一种新型的电力电缆护层故障测试仪。
The principle of cable-type temperature detector is introduced. The fault mechanism of the device is analysed. A bodily example of life testing is given also.
介绍了电缆型温度探测器的工作原理，分析了损坏性的和漂移性的失效机理，并举例介绍了寿命试验。
The automatic testing method of cable fault is characterized by that the pulse signal transmitted and received by pulse reflection test circuit can be directly superposed on the output end of d.
电缆故障的自动测试方法，其特征在于是将脉冲反射测试电路发射与接收的脉冲信号直接叠加到直流高压测量电路的输出端，直流高压测量电路的输出端与被测电缆端口连接。
The automatic testing method of cable fault is characterized by that the pulse signal transmitted and received by pulse reflection test circuit can be directly superposed on the output end of d.
电缆故障的自动测试方法，其特征在于是将脉冲反射测试电路发射与接收的脉冲信号直接叠加到直流高压测量电路的输出端，直流高压测量电路的输出端与被测电缆端口连接。
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