反射及发射率对光纤测温仪精度的影响及抑制  

Effect and Control on Temperature Measurement Accuracy of the Fiber-optic Colorimeter by Reflection and Radiance

作　　者：施德恒[1] 刘玉芳[2] 孙金锋[2] 朱遵略[2] 

机构地区：[1]信阳师范学院物理电子工程学院,河南信阳464000 [2]河南师范大学物理与信息工程学院,河南新乡453007

出　　处：《激光与红外》2006年第5期365-368,共4页Laser & Infrared

基　　金：国家自然科学基金项目(No.F0501)

摘　　要：在简要介绍一种利用钽酸锂热释电探测器实现的实用化双波长光纤测温仪的基础上,着重讨论了待测面对背景目标辐射的反射（反射辐射）及待测面的光谱发射率对仪器测温精度的影响,并提出了相应的抑制措施.结果表明,在采取相应的抗干扰措施后,在仪器要求的测温范围400～1360℃内,其测温精度符合设计要求.Mter briefly introducing a practical dual-wavelength fiber-optic colorimeter using LiTaO3 pyroelectric detector, this paper mainly discusses the effect and control on temperature measurement accuracy by radiation reflection and spectral radiance. Some necessary calculations and analyses are given. Analysis results show that the temperature measurement accuracy is suitable for our requirements at 400 - 1360℃ after having taken mentioned measures ment.

关 键 词：辐射测温 双波长 热释电探测器 光纤 反射辐射 光谱发射率 

分 类 号：TN247[电子电信—物理电子学]