摘要
光纤电压传感器可以用于电网电压的监测和保护。文中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 ,并且提出了 1/
Optical Fiber Voltage Sensor can be applied to monitor and measure the voltage of the power network. In this paper, the principle of bulk optical fiber Voltage Sensor is pondered and the influences of all parts of sensor head on measuring range and nonlinear distortion are analyzed,as well as the way of improving SNR is acquired. Through the study the linear measuring range of the virtual value is greater than that of instantaneous value ,when the monitored voltage is alternating sine-wave. Finally the optimal alignment of all parts by which the topmost SNR and minimum nonlinear distortion can be acquired is determined and the condition is set to meet the demand on 1/4 filter and LED in the first time.
出处
《仪表技术与传感器》
CSCD
北大核心
2000年第6期4-7,共4页
Instrument Technique and Sensor
