一种光纤干涉式高压电流传感器的设计

Designing of an Optic Fiber Interferometer High-Voltage Current Sensor

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 )

A simple structure optic fiber interferometer current sensor was designed. The model is given and the feasibility is tested. Compared with other current sensors, this sensor is free of power supply in high-voltage side with a large measuring range and is not sensitive to slow variable such as temperature because of its special optic circuit.