【摘要】 采用琼斯矩阵方法对保偏膜反射相移温度特性对块状光学电流互感器(BGOCT)灵敏度的影响作了理论研究,结果表明,当温度从5.3℃变化到39℃时,表征系统灵敏度的归一化尺度因子会在一定范围内变化.表明镀制于光学玻璃电流传感头上的保偏膜反射相移温度特性影响光学电流传感器的稳定性.因此,在实际系统设计中对光学玻璃电流传感头应采取必要的温度控制或补偿措施.更多还原

【Abstract】 The effect of the temperature features of reflection–induced retardance of the polarization preserving total reflecting single medium layer upon the sensitivity and stability of a bulk glass optical current transformer is theoretically studied using Jones Matrix method. The results show that the normalized scale factor representing the system sensitivity changed in a certain range with the temperature varying from 5.3℃ to 39℃, which means the BGOCT’s stability is affected by the temperature features of the reflection induced retardance of the polarization preserving reflecting single medium layer coated on the sensing head. Therefore some technical means of temperature compensation of control to the BGOCT′s sensing head should be taken in the design procedures for practical systems.更多还原