Investigation on Optic-fiber Temperature Sensor Based on Semiconductor Optical Absorption

摘要

A new optic-fiber temperature sensor based on spectrum absorption characteristic of semiconductor used to measure environment temperature is introduced in this paper. Transmitted probe of this sensor system is designed. Plastic optic fiber is used as the transmitting medium of this system to reduce the price of this system. Intensity compensation system is designed to eliminate the disturbance caused by the instability of the light source.