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°.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第5期379-385,共7页
Journal of Infrared and Millimeter Waves
关键词
辐射测温
红外光纤
低温
测温计
非接触式
radiation temperature measurement,infrared optical fiber,low temperature thermometer
