改进光纤布拉格光栅传感性能的方法  

Improvement Method of FBG Sensor Performance

作　　者：张华[1] 肖丽丽[1] 冯艳[1] 饶春芳[1] 彭星玲[1] 

机构地区：[1]南昌大学机电工程学院江西省机器人及焊接自动化重点实验室,江西南昌330031

出　　处：《南昌大学学报（工科版）》2012年第1期49-52,共4页Journal of Nanchang University(Engineering & Technology)

基　　金：国家自然科学基金资助项目(61067003);教育部博士点新教师基金资助项目(20103601120005);江西省自然科学基金资助项目(2010GQC0129);江西省教育厅青年科学基金资助项目(GJJ11035)

摘　　要：为了改善金属化保护后光纤Bragg光栅(FBG)的传感性能,采用化学镀后随恒温水浴箱自然冷却的方法减小温度突变。实验表明:改进后化学镀前后其透射谱3 dB带宽为0.129 nm,没有改变,峰值损耗只降低了3.42%,同时其温度传感迟滞误差为1.85%,测量值中最大正反行程差值折算成温度约为1.48℃。In order to improve the performance of metal coated Fiber Bragg Grating （FBG） sensor, the electroless plating FBG was cooled slowly to room temperature with the water in thermostatic bath. It showed that 3 dB bandwidth was 0. 129 nm without any change ,the peak loss was only reduced by 3.42%, at the same time the hysteresis error was 1.85% ,the biggest difference value between positive and negative trip was approximately 1.48 ℃ when it was converted into temperature.

关 键 词：光纤BRAGG光栅 带宽 损耗 迟滞误差 温度传感 

分 类 号：TN929[电子电信—通信与信息系统]