一种实时测温系统的反射辐射的抑制与水冷遮蔽板的优化设计  

Control on reflection radiation and optimal design of water-cooled shelter pl ate of a real-time temperature measurement system

作　　者：刘玉芳[1] 朱遵略[1] 施德恒[2] 黄国庆[2] 陈玉科[2] 

机构地区：[1]河南师范大学物理系,新乡453002 [2]空军第一航空学院基础部,信阳464000

出　　处：《光学技术》2003年第5期604-607,共4页Optical Technique

基　　金：河南省科技攻关计划项目(001120321)

摘　　要：基于Kirchhoff定律,利用半导体激光器及钽酸锂热释电探测器设计了一种实用化的实时测温系统。在介绍系统测温原理的基础上,着重分析了反射辐射对该系统测温精度的影响。提出了利用水冷遮蔽板抑制反射辐射对该系统测温精度影响的方法,对水冷遮蔽板进行了优化设计。分析表明,采用优化设计的水冷遮蔽板之后,在要求的测温范围400～1200℃内,反射辐射对该系统测温精度的影响可以忽略不计。Based on the Kirchhoff law, a practical temperature real-time measurem ent system using laser diode InGaAs/I and LiTaO3 pyroelectric detector is pres en ted. The temperature measurement principle is introduced. The effect and control on temperature measurement accuracy are discussed by reflection radiation. A me thod about controlling reflection radiation by a water-cooled shelter plate is g iven. The water-cooled shelter plate is optimized. Analysis results show that t e mperature measurement error derived from reflection radiation may be negligible at 400～1200℃ after taking this optimal water-cooled shelter plate.

关 键 词：测试计量仪器 辐射测温 热释电探测器 测温误差 反射辐射 水冷遮蔽板 优化设计 Kirchhoff定律 

分 类 号：TH811.2[机械工程—仪器科学与技术] O551.2[机械工程—精密仪器及机械]