一、前言光导纤维技术是近几年来国内迅速发展的一种新技术。它不仅在光通讯和医用光纤诊察仪方面已被成功地应用,而且在光导纤维传感器技术方面,国外已经走出实验室,国内许多大学和研究单位正在研制光纤温度传感器、光纤磁场传感器、光纤电压传感器、光纤位移传感器等。光纤温度传感器,国外市场上有商品出售。国内有上海仪表三厂、上海仪表研究所、沈阳金属研究所、北京303研究所等单位正在研制单波段光纤温度传感器,它的优点是可以在有烟雾和电磁场恶劣环境下进行测量,并且可以测量眼睛看不到的地方。CW-GQ-1型光纤温度测量仪,采用双 I. Introduction Optical fiber technology is a new technology developed rapidly in recent years in China. It not only has been successfully applied in the field of optical communication and medical optical fiber diagnostic instruments, but also has gone out of laboratories in optical fiber sensor technology. Many domestic universities and research institutes are developing optical fiber temperature sensors, optical fiber magnetic field sensors, optical fiber voltage sensors , Optical fiber displacement sensor. Optical fiber temperature sensor, there are goods on the market for sale. China has the first instrument factory in Shanghai, Shanghai Institute of Instrumentation, Shenyang Institute of Metal, Beijing Institute of 303 and other units are developing single-band optical fiber temperature sensor, which has the advantage of haze and electromagnetic fields in harsh environments can be measured, and can measure Where the eyes can not see. CW-GQ-1 fiber optic temperature measuring instrument, dual