摘要
用理论分析和计算机仿真的方法分析了线性双折射的温度特性及其对光学玻璃电流互感器输出特性的影响.结果表明:当温度均匀分布时,传感头与周围介质相互作用产生的应力线性双折射是影响系统灵敏度的主要因素;当温度在-40～40℃范围内变化时,线性双折射使系统灵敏度变化可达1%.该研究结果可为光学玻璃电流传感器研究者提供参考.
The temperature characteristic of linear birefringence and its effecting on the output of an optic-glass current sensor are theoretically analyzed and simulated with a computer. The outcome shows the system sensitivity can be changed by one percent when temperature ranges from negative 40 degrees to positive 40 degrees celsius. When the temperature field is distributed evenly, linear birefringence induced by mutual pressure of the sensing head and surrounding material is main factor affecting the system sensitivity. When fabricating the sensing head, rational sealing method and appropriate buffer material should be used to debate linear birefringence and improve temperature stabilization of the measuring system. This research affords a useful reference for those studying the temperature characteristics of optic-glass current sensors.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2005年第2期272-276,共5页
Journal of Harbin Engineering University
基金
黑龙江省自然科学基金资助项目(F01-02).
