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设计了一种结构简单的光纤干涉式电流传感器 ,给出了其数学模型 ,并用实验验证了该系统的可行性。与其它光纤电流传感器相比 ,该传感器高压侧无需电源 ,特殊的光路使得它的测量范围大大增加 ,并且对缓变的干扰信号 (如温度 )不敏感
A simple structured fiber optic interferometric current sensor is designed. Its mathematical model is given, and the feasibility of the system is verified by experiments. Compared to other fiber optic current sensors, this sensor has no power supply on the high voltage side. The special optical path increases its measuring range and is insensitive to slowly changing interfering signals (such as temperature)