A Novel Fiber Bragg Grating Temperature Compensated Strain Sensor

摘要：

This paper analyzed the strain-temperature crosssensitive characteristic of optical fiber Bragg grating(FBG)theoretically,designed and made a novel FBG strain sensor.It has a temperature-compensated function,and it improves the effect of being sensitive to strain.To a certain extent,this sensor overcame the traditional temperature-compensated methods easy to have a creep and aged phenomenon.The experimental results show that the sensor realized the temperature sensitivity reduces to 1/10 before the seal,and the strain sensitivity increases to 1.4pm/με over the temperature range from -10℃ to 50℃.

关键词： fiber Bragg grating temperature-compensated Strain Negative coefficient of thermal expansion

作者: Du Yanliang Li Jianzhi Liu Chenxi

作者单位: Key laboratory of Structural Health Monitoring and Control ,Shijiazhuang railway institute,shijiazhuang 050043

会议类型: 国际会议

会议名称: 第一届智能网络与智能系统国际会议(ICINIS 2008)(The First International Conference on Intelligent Networks and Intelligent Systems)

会议地点: 武汉

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）