集磁式光纤电流传感器

Ferromagnetic Collector Type Fiber-optic Current Sensor

以法拉第磁光效应为原理的光纤电流传感器因其无爆炸危险、抗高电磁干扰、绝缘性好、价格便宜、结构简单、质量轻等优点,将成为传统电磁式互感器的替代产品。文中介绍一种集磁式光纤电流传感器,说明该传感器的工作原理,并且给出传感头的结构、信号处理电路,最后对其测试性能进行了必要的讨论,证明此类传感器具有成本低、稳定性高、使用灵活等特点。

The fiber-optic current sensor that is based on the principle of the Faraday effect has many good characters, such as high resist of EMI, strong insulation, low price, simple configuration, little weight, etc. For all these reasons, it is becoming the substitute of the traditional CT. It introduced a kind of Ferromagnetic fiber-optic current sensor, and illuminated its principle, presented its configuration of sensing head and DSP circuit. Finally, the testing capabilities are discussed. It can testify that this kind of sensor is low cost, high stable, and easy to use.