球面黑体腔温度传感器有效发射率的研究  

Research on effective emissivity of temperature sensor inspherical blackbody cavity

作　　者：蔡璐璐 刘江南[1] 雷冬阁 吴飞 CAI Lulu;LIU Jiangnan;LEI Dongge;WU Fei(College of Electrical and Information Engineering,Quzhou University,Quzhou 324000 China;School of Electrical Engineering,Yanshan University,Qinhuangdao 066004,China)

机构地区：[1]衢州学院电气与信息工程学院,浙江衢州324000 [2]燕山大学电气工程学院,河北秦皇岛066004

出　　处：《传感器与微系统》2021年第11期36-39,共4页Transducer and Microsystem Technologies

基　　金：浙江省基础公益研究计划项目(LGG19F050003)。

摘　　要：采用有限元分析法和Monte-Carlo法计算球面黑体腔温度传感器的有效发射率,并进行对比分析。从黑体腔几何参数、壁面材料发射率、探测器到腔口距离、底部球面球心角等方面对球面黑体腔温度传感器的有效发射率进行了探讨。计算结果表明:两种方法得出结论基本一致,材料发射率εr为0.5~0.6,腔体长径比L/R为6,腔体孔径比R 0/R为0.5,底部球面球心角θ为40°,探测器到腔口距离H=10时,球面黑体腔温度传感器有效发射率较大且稳定。The finite element analysis method and Monte-Carlo method are used to calculate the effective emissivity of the spherical blackbody cavity temperature sensor,and the results are compared and analyzed.The effective emissivity of the blackbody cavity temperature sensor is discussed in terms of the geometric parameters of the blackbody cavity,the emissivity of the wall surface material,the distance from the detector to the opening of cavity,and the sphere center angle of the bottom spherical surface.The calculation results show that the two methods reach basically the same conclusion,that is,the material emissivity is 0.5~0.6,the cavity length to radius ratio is 6,the aperture ratio is 0.5,the bottom spherical sphere angle of the bottom spherical surfaceθis 40°,and,when the distance from the detector to the opening of cavity H is 10,the effective emissivity of the spherical black body cavity temperature sensor is large and stable.

关 键 词：球面黑体腔 有效发射率 有限元分析法 MONTE-CARLO法 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TH811[自动化与计算机技术—控制科学与工程]