消除温度对应变测量的影响  

Removing the Influence of the Stain Measure by Temperature

作　　者：万旭[1] 彭保进[1] 廖延彪[2] 张敏[2] 赖淑蓉[2] 

机构地区：[1]浙江师范大学信息光学研究所,浙江金华321004 [2]清华大学电子工程系,北京100084

出　　处：《激光与红外》2005年第10期755-757,共3页Laser & Infrared

基　　金：浙江省自然科学基金(M603243)资助

摘　　要：提出了用光纤布喇格光栅(FBG)传感器测量光纤有效弹光系数的方法。利用光纤布喇格光栅的性质,建立了一个可以有效地解决温度与应变对光栅存在交叉敏感的问题实验系统。实验结果表明,该系统能有效地测出了光纤的有效弹光系数,而且测量误差小于1.3%。A new way to measure fibers＇ valid elastic-optic constant is presented which based on optical fiber Bragg grating sensor. The method caters for the need of measuring new-style fibers＇ valid elastic-optic constants presently. The constant is measured by a temperature referrence gratin, a measuremental grating and one material known of expansion coefficient, combining with the characteristic of fiber Bragg grating. Experimental setup and measurement principle are discussed. The result of experiment proves that the system can solve the existent cross sensitive problem which caused by temperature and the strain effectively. So we can measure the fiber＇ s valid elastic-optic constants successfully,and the result of measurement proves that the error is smaller than 1.3%.

关 键 词：光纤布喇格光栅 应变 有效弹光系数 光电检测 

分 类 号：TN253[电子电信—物理电子学]