在-50℃～+150℃大温度范围下用FBG测材料的三维热膨胀系数  

Measurement of the 3-D Thermal Expansion Coefficients of Material Used by a FBG During the Large-scale Temperature Between Negative 50℃ and Positive 150℃

作　　者：彭保进[1] 张敏[2] 廖延彪[2] 赖淑蓉[2] 匡武[2] 贺晓霞[3] 

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 [3]清华大学精密仪器系,北京100084

出　　处：《光子学报》2005年第10期1501-1505,共5页Acta Photonica Sinica

基　　金：海洋863重大项目(编号:2001AA602011-11);浙江省科技计划项目(编号:2005C31011)资助

摘　　要：报导了用光纤布喇格光栅(FBG)传感器测量军工用的一新型材料的新方法.实验结果表明,此方法可在恶劣环境下可靠检测热膨胀系数,FBG在低至-50℃和高至+150℃大范围下仍能正常工作.文中给出了相应理论及实验结果.In order to measure materials of 3-D hermal expansion coefficient under the condition of the bad environment,a novel method was proposed in this paper. The thermal expansion coefficience of the new material was measured by using a Fiber Bragg Grating sensor. The results of experiment indicate that this method could be full of credibility in examining the thermal expansion coefficient under the condition of the bad environment,at of the large-scale temperature of bellowing to negative 50℃ and highing to 150℃ the FBG could also be in a good working condition. The text gave the theory correspondence and the results of experiment.

关 键 词：光纤布喇格光栅 应变 三维热膨胀系数 光电检测 

分 类 号：TN929[电子电信—通信与信息系统]