【摘要】 介绍了全光纤电流互感器的工作原理,分析了系统光路输出信号的特点,由此提出了基于方波调制解调的数字相关检测方案,并阐述了其测量原理及实现方法。实验结果表明,系统分辨率小于1A,系统的比例因数在-40℃~60℃下变化小于0.5%。更多还原

【Abstract】 The work principle of Fiber Optical Current Transducer (FOCT) is introduced. By analyzing the characteristic of the optical apparatus, a measurement scheme based on square wave modulation and demodulation is put forward, and the measurement scheme is discussed at length. The data given in the paper shows the system distinguishing rate is less than 1A, and the scale rate changes less than 0.5% between -40℃ and 60℃.更多还原