有源法海底光缆探测中探测范围分析与计算

Analysis and calculation of detection range with active method to detect submarine fiber optic cable

讨论了有源法海底光缆故障探测与定位技术中影响探测范围的因素,确定了接收灵敏度和注入电流与探测距离的关系。研究结果表明:探测范围与注入电流成正比关系,而与接收灵敏度并不是简单的比例关系,在距离较远时近似成对数关系。

This paper deals with the active method for submarine cable fault detection and the location technologies affecting the detection range,and determines the receiver sensitivity and the relationship between the injection current and the detection range.The results show that the detection range is directly proportional to the injection current,but not a simple proportional relationship with receiver sensitivity.At the approximate distance,they form the relationship of logarithm.