中低温光纤辐射测温技术的研究  

Study on fiber radiation thermometry in moderate and low temperature

作　　者：林应文[1] 颜华[1] 贾丹萍[1] 

机构地区：[1]沈阳工业大学

出　　处：《宇航计测技术》1994年第4期44-48,共5页Journal of Astronautic Metrology and Measurement

摘　　要：以国产石英光纤作光路、硫化铅探测器为敏感元件所构成的中温光纤辐射测温仪，在２００℃以上实现了１℃分辨力的温度检测；以氟化物光纤作光路、硒化铅探测器为敏感元件，初步实验结果是８０℃以上获得了１℃的分辨力。提出一种新的桥路双平衡调解法，较好地解决了半导体探测器的温漂问题。系统所采用的积分与累加检测法对噪声与干扰有明显的抑制作用。A moderate temperature fiber optic pyrorneter using a silica fiber as light transmission and a PbS detector as photosensing is developed to detect temperature above 200℃ with a resolution of 1℃, Utilizing a fluoride fiber and a PbSe detector,a primary experiment shows that a resolution of 1℃ can be ob-tained above 80℃. A new method called double ballance bridge is introduced,which solves the problem of the ternperature drift of semiconductor detectors very well.The noise and interference are reduced significantly by a combination of integration and accumulation detective methods.

关 键 词：光纤辐射 石英光纤 温度测量 温度测量仪表 

分 类 号：TH811[机械工程—仪器科学与技术]