红外光纤用于低温辐射测温的研究  

STUDY ON RADIATION TEMPERATURE MEASUREMENT WITH INFRARED FIBER AT LOW TEMPERATURE

作　　者：杨文库[1] 邓文荣[2] 

机构地区：[1]长春光学精密机械学院电子工程系 [2]中国科学院长春光学精密机械研究所

出　　处：《红外与毫米波学报》1996年第5期379-385,共7页Journal of Infrared and Millimeter Waves

摘　　要：探讨了将红外光纤（束）直接与靶目标和探测器耦合，用于低温辐射测温的理论和技术．导出了光纤的有效临界角．证明了在直接耦合时，光纤（束）接收和传输的功率与光纤和靶目标表面耦合间距无关；当耦合准直角变化在±１５°范围时。The theory and technique of radiation temperature measurement with infrared fiber (bundle) at low temperature were systematically studied when the infrared optical fiber (bundle) was directly coupled with the target surface and the detector. The effective critical angle of the optical fiber was derived. It was proved that with direct coupling, the received and transmitted power of optical fiber (bundle) does not depend on the coupling distance between the target surface and the optical fiber, and does not depend on the collimating angle between the optical fiber and target surface when the coupling collimating angle is changed within ±15°.

关 键 词：辐射测温 红外光纤 低温 测温计 非接触式 

分 类 号：TH811.1[机械工程—仪器科学与技术] TN215[机械工程—精密仪器及机械]