温度场、应力场对光学电压传感器影响的分析  

Influence of Temperature and Stress Field on Optical Voltage Sensor

作　　者：肖霞[1] 徐雁[1] 叶妙元[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《压电与声光》2006年第5期524-526,533,共4页Piezoelectrics & Acoustooptics

摘　　要：以锗酸铋(BGO)晶体为传感材料,分析了由温度、SF6气体产生的温度场、应力场对晶体光学性质的影响,得到了温度场、应力场对光学电压传感器性能影响的规律,即由温度场产生的热光效应和在均匀状态下的SF6气体压应力对传感器性能没有影响。但由温度变化在晶体内产生的热应力引起的双折射相位延迟,却叠加在电光效应相位延迟上,且随温度变化,对传感器的稳定性产生影响。最后给出了传感器受温度影响的试验结果。The influence of temperature field and stress field on the performance of the optical voltage sensor based on the BGO crystal acting as the sensing element is analyzed. The rule that temperature field and stress field affect the stability of OVS is obtained, that is, thermal-optic effect and stress of SF6 have no influence on the performance of OVS, but the phase delay resulted from thermal-stress of the temperature change is added on the phase delay produced from electro-optic effect and varies with temperature, which affected the stability of OVS. The test result of the influence of temperature on the performance of OVS is given.

关 键 词：光学电压传感器 稳定性 热光效应 热应力 弹光效应 

分 类 号：TM452[电气工程—电器]