一个纤维布拉格栅栏紧张传感器,带宽对温度其思考感觉迟钝,被介绍。代表性的区域被设计线性地变化。在轴的应力下面,在应力和平均紧张之间有一种线性关系。试验性的结果证明当温度增加时,思考中心波长变到更长的波长,并且在中心波长和温度之间有一种好线性关系。当应力增加时,思考中心波长变到更长的波长,并且思考带宽增加。在思考中心波长和压力以及思考带宽和应力之间有好线性关系。
A fiber Bragg grating strain sensor, whose reflection bandwidth is insensitive to temperature, is presented. The cross-sectional area is designed to change linearly. Under axial stress, there is a linear relationship between stress and average strain. Experimental results show that when temperature increases, reflection center wavelength shifts to longer wavelength, and there is a good linear relationship between center wavelength and temperature. When stress increases, reflection center wavelength shifts to longer wavelength, and reflection bandwidth increases. There are good linear relationships between reflection center wavelength and stress as well as reflection bandwidth and stress.