直流光学传感频谱迁移测量法及其实现方案

LI Yansong; LIU Jun; MENG Lu

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直流光学传感频谱迁移测量法及其实现方案

更新时间：2025-08-13

- 直流光学传感频谱迁移测量法及其实现方案
- Automation of Electric Power Systems Vol. 36, Issue 15, Pages: 96-100(2012)
- 作者机构：
  
  华北电力大学电气与电子工程学院,北京市,102206
- 作者简介：
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- Published：2012
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LI Yansong, LIU Jun, MENG Lu. [J]. Automation of electric power systems, 2012, 36(15): 96-100.
DOI：

LI Yansong, LIU Jun, MENG Lu. [J]. Automation of electric power systems, 2012, 36(15): 96-100. DOI：

摘要

首先分析了法拉第光学直流电流互感器的信噪频带重叠现象及低频噪声的影响，提出了直流光学传感频谱迁移测量法，推导了光学调制和信号解调方法的数学模型。其次设计了直流光学传感频谱迁移测量法的实现方案。最后对所设计的直流光学电流测量系统进行了误差分析及特性试验。实验结果表明，该测量系统具有较高的测量精度，能够消除信噪重叠现象，证明了该方法的实用性。

Abstract

Firstly， the phenomenon of signal noise frequency band overlapping and the effect of low frequency noise in the direct current optical transducer are analyzed. The direct current optical sensing spectrum shifting measurement method is presented，and the mathematical model of optical modulation and signal demodulation is developed. Secondly， the realization of direct current optical sensing spectrum shifting measurement method is designed. Finally， the error analysis and characteristic test are finished in the direct current optical transducer. The test results show that the proposed measurement system has high accuracy of direct current measurement， and can eliminate the signal noise frequency band overlapping phenomenon. The practicality of the proposed method is thus proven.

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