红外与毫米波学报, 2017, 36 (6): 783, 网络出版: 2018-01-04
一种物体比辐射率的新型四次测量法及增温补偿
A new method on estimating object emissivity by using four times measuring and principle of temperature compensation
比辐射率 二次照度四次测量法 增温补偿 求解比辐射率的普适表达式 过程法 emissivity two times radiation and four times observing metho temperature compensation a universal expression of solving emissivity process method
摘要
提出了测量物体比辐射率的二次照度四次测量法.根据自主研制的仪器表明该方法和设计能够测量到与照射到被测目标完全一致的热辐射源辐照度, 并且能够排除传感器镜头、腔壁等的干扰.不仅提高测量精度, 而且可以设计成小尺寸便携式的比辐射率测定仪.设计的1000 w/m2以上的强热辐射源, 大幅度提高仪器信噪比.为了补偿在强热辐射源下的被测目标的增温, 提出了在非同温系统中求解比辐射率普适表达式以及补偿增温的“过程法”.从而解决了在非同温系统中温度变化造成比辐射率测量误差的瓶颈问题.三种比辐射率测量方法对比表明, 该方法优于其它两种方法.
Abstract
A "two times thermal irradiance and four times measuring method" was proposed to measure the surface emissivity of any object. Compared with the previous methods, the proposed method can completely eliminate the interference of the lens and cavity walls of the sensor to measure accurately the irradiance of the observed object, implying its ability to improve the accuracy of surface emissivity measurement and making the equipment of emissivity measurement portable. The designed 1000+w/m2 strong heat radiation source considerably improved the signal to noise ratio of the equipment. To compensate the warming effect of the measured object under the strong heat radiation source, we proposed a universal expression to solve the emissivity in the non-isothermal system and a "Process Method" to reduce warming. The comparison of three measurement results showed that the proposed method outperformed the others.
张仁华, 米素娟, 田静, 李召良, 苏红波, 郝贵斌, 姜勃, 刘素华. 一种物体比辐射率的新型四次测量法及增温补偿[J]. 红外与毫米波学报, 2017, 36(6): 783. ZHANG Ren-Hua, MI Su-Juan, TIAN Jing, LI Zhao-Liang, SU Hong-Bo, HAO Gui-Bin, JIANG Bo, LIU Su-Hua. A new method on estimating object emissivity by using four times measuring and principle of temperature compensation[J]. Journal of Infrared and Millimeter Waves, 2017, 36(6): 783.