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光纤电压传感器可以用于电网电压的监测和保护.本文对体调制型光纤电压传感器原理进行了分析,提出当考虑被测电压为交流正弦波时,有效值的线性测量范围大于瞬时值的线性测量范围,并分析了传感头各器件的取向对测量范围和非线性失真的影响,得到了提高信噪比的途径,确定了获得最高信噪比和最小非线性失真的最佳取向
The optical fiber voltage sensor can be used for the monitoring and protection of the power network voltage.In this paper, the principle of the body modulation type optical fiber voltage sensor is analyzed, and the linear measurement of the effective value of the linear measurement range greater than the instantaneous value is proposed when considering the measured voltage as the AC sine wave The influence of the orientation of each device on the measurement range and nonlinear distortion is analyzed. The way to improve the signal to noise ratio is obtained and the optimal orientation to get the highest SNR and minimum nonlinear distortion