【摘要】 光纤光栅传感器在现实应用中的一个主要问题是温度和应变的交叉敏感问题。介绍了光纤双光栅同步测量温度和应变的原理,设计了一个光纤双光栅温度、应变测量系统,对光纤双光栅的温度和应变传感性能进行了实验研究,结果表明光纤双光栅具有多参量同时测量的能力。更多还原

【Abstract】 The cross-sensitivity of the strain and temperature is a main problem of the fiber Bragg grating(FBG) sensor in applications.The principle of synchronous measurement of the temperature and strain by using the dual fiber Bragg grating(FBG) has been introduced.A dual FBGs system for measuring the temperature and the strain has been designed and the temperature and strain sensing performance of the dual FBGs system has been verified.The results showed that the dual FBGs system had the ability to measure the multiple parameters simultaneously.更多还原