一种新颖的强度调制型绞合式光纤应变传感器

A Novel Intensity Modulating Twisted Optical Fiber Strain Transducer

介绍一种本征型强度调制绞合式光纤应变传感器，分析了该传感器的应变传感原理。理论与实验均表明，该传感器既能测量拉应变，又能测量压应变，对应变的响应具有良好的线性和重复性、灵敏度高、无迟滞现象。

An inherent intensity modulating strain transducer with twisted optical fiber is introduced. The strain transducing Principle of the transducer is analyzed. From both theory and practice, it is indicated that the transducer can be used to measure pull-strain and the press-strain, and features excellent linear response and good repeatability as well as no lag and dead phenomenon