卤钨灯辐射光谱特性及其补偿方法  

Radiation Spectral Characteristics of Tungsten Halogen Lamp and Its Compensation Method

作　　者：刘昶江 潘永强[1] 徐郁盛 刘光海 张雄星[1] 王伟[1,2] LIU Changjiang;PAN Yongqiang;XU Yusheng;LIU Guanghai;ZHANG Xiongxing;WANG Wei(College of Optoelectronic Engineering,Xi’an Technological University,Xi’an 710021,China;Sichuan Buko Optical Precision Machinery Co.,Ltd.,Mianyang 621022,China)

机构地区：[1]西安工业大学光电工程学院,陕西西安710021 [2]四川物科光学精密机械有限公司,四川绵阳621022

出　　处：《测试技术学报》2025年第2期164-171,共8页Journal of Test and Measurement Technology

基　　金：陕西省重点研发计划资助项目(2024GX-YBXM-041)。

摘　　要：在辐射温度测量领域,通常使用黑体炉进行标定。为了应对黑体炉成本较高且测量条件苛刻的问题,提出了一种使卤钨灯光谱曲线更接近理想黑体的方法,即通过对一系列控制电流下卤钨灯光谱曲线值进行测量,与其归一化拟合度最高的黑体曲线进行比较,测量出通用补偿系数,从而对卤钨灯的辐射出射度曲线进行补偿,使其在较高精度范围内代替黑体炉。利用互相关算法,着重分析了不同温度下卤钨灯辐射曲线与光谱补偿后曲线的拟合度。实验结果表明:在2200~3000 K温度范围、700~1700 nm波段内可以用卤钨灯代替黑体进行标定,拟合度可达0.9999,解决了黑体炉标定问题,提高了可操作性,简化了实验步骤,有广阔的应用前景。In the field of radiation temperature measurement,blackbody furnaces are usually used for cali-bration.In order to deal with the problems of high cost and harsh measurement conditions of blackbody furnace,a method is proposed to make the spectral curve of tungsten halide light closer to the ideal black-body,that is,by measuring the spectral curve value of tungsten halide light at a series of controlled cur-rent,comparing with the blackbody curve with the highest normalization fitting degree,measuring the gen-eral compensation coefficient,and compensating the radiation emission curve of tungsten halide lamp.The blackbody furnace is replaced in a high precision range.By using a cross-correlation algorithm,the fitting degree of the radiation curve and spectral compensated curve of the tungsten halide lamp at different tem-peratures is analyzed.The experimental results show that a tungsten halogen lamp can be used to calibrate blackbody in the temperature range of 2200~3000 K and in the band of 700~1700 nm,and the fitting degree can reach 0.9999.The problem of calibration of the blackbody furnace is solved and the operabil-ity is improved.the experimental steps are simplified and the application prospect is broad.

关 键 词：黑体炉 标定 光谱测量 卤钨灯 互相关算法 

分 类 号：TH741[机械工程—光学工程]