非制冷红外热像仪稳定性验证方法研究
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摘要
非制冷红外热像仪随着环境温度、电源波动以及吸收红外辐射的增加,将会产生严重的温度漂移现象,这将影响到红外探测器的响应特性,从而导致输出信号受一定的影响。本文针对应用在测温检测方面的非制冷红外热像仪开展研究,提出了一种红外热像仪稳定性验证试验方法,并通过此方法对国内外多款非制冷红外热像仪进行了稳定性测试,绘制其输出信号随时间变化的曲线。根据稳定性情况确定针对热像仪温度漂移的温度补偿算法,提升应用产品的测温精度。
Uncooled infrared thermal imager will suffer severe temperature drift with the increase of temperature,power fluctuations,and absorption of infrared radiation,which will affect the response characteristics of the infrared detector,resulting in a certain impact on the output signal.In this paper,the uncooled infrared thermal imager used in temperature detection was studied,and a stability verification test method of the infrared thermal imager was proposed.Through this method,the stability test of several uncooled infrared thermal imager at home and abroad was conducted,and the curve of its output signal changing with time was drawn.The temperature compensation algorithm for the temperature drift of the thermal imager is determined on the basis of the stability situation,the temperature measurement accuracy of the applied product is improved accordingly.
Uncooled infrared thermal imager will suffer severe temperature drift with the increase of temperature,power fluctuations,and absorption of infrared radiation,which will affect the response characteristics of the infrared detector,resulting in a certain impact on the output signal.In this paper,the uncooled infrared thermal imager used in temperature detection was studied,and a stability verification test method of the infrared thermal imager was proposed.Through this method,the stability test of several uncooled infrared thermal imager at home and abroad was conducted,and the curve of its output signal changing with time was drawn.The temperature compensation algorithm for the temperature drift of the thermal imager is determined on the basis of the stability situation,the temperature measurement accuracy of the applied product is improved accordingly.
引文
[1] ZHANG Yanchao,GAO Ce,LIU Jianzhuo,et al.Correction of temperature measurement accuracy affected by internal temperature rise in uncooled thermal imager[J].Chinese Optics,2008,8(11):669-676.(in Chinese)张艳超,高策,刘建卓,等.非制冷热像仪内部温升对测温精度的影响修正[J].中国光学,2008,8(11):669-676.
[2] WANG Tao,LIU Chengkang,YUAN Xianghui.The charecteristic parameter of uncooled microbolomerer[J].Laser & Infrared,2017,31(3):177-179.(in Chinese)汪涛,刘成康,袁祥辉.非制冷微测辐射热计的特性参数[J].激光与红外,2017,31(3):177-179.
[3] LIAO Panpan,ZHANG Jianmin.Research on influence factors for measuring and method of correction in infrared thermometer[J].Infrared Technology,2017,39(2):173-177.(in Chinese)廖盼盼,张佳民.红外测温精度的影响因素及补偿方法的研究[J].红外技术,2017,39(2):173-177.
[4] SUN Zhiyuan,ZHU Wei,QIAO Yanfeng.Amendment of gray drift in infrared temperature measurement[J].Chinese Journal of Optics and Applied Optics,2010,3(4):391-395.(in Chinese)孙志远,朱玮,乔彦峰.红外测温过程中灰度值漂移的修正[J].中国光学与应用光学,2010,3(4):391-395.
[5] ZHANG Xiaolong,LIU Ying,SUN Qiang.Radiometric calibration of uncooled long-wave infrared thermal imager with high-precision[J].Chinese Optics,2012,5(3):235-241.(in Chinese)张晓龙,刘英,孙强.高精度非致冷长波红外热像仪的辐射标定[J].中国光学,2012,5(3):235-241.
[2] WANG Tao,LIU Chengkang,YUAN Xianghui.The charecteristic parameter of uncooled microbolomerer[J].Laser & Infrared,2017,31(3):177-179.(in Chinese)汪涛,刘成康,袁祥辉.非制冷微测辐射热计的特性参数[J].激光与红外,2017,31(3):177-179.
[3] LIAO Panpan,ZHANG Jianmin.Research on influence factors for measuring and method of correction in infrared thermometer[J].Infrared Technology,2017,39(2):173-177.(in Chinese)廖盼盼,张佳民.红外测温精度的影响因素及补偿方法的研究[J].红外技术,2017,39(2):173-177.
[4] SUN Zhiyuan,ZHU Wei,QIAO Yanfeng.Amendment of gray drift in infrared temperature measurement[J].Chinese Journal of Optics and Applied Optics,2010,3(4):391-395.(in Chinese)孙志远,朱玮,乔彦峰.红外测温过程中灰度值漂移的修正[J].中国光学与应用光学,2010,3(4):391-395.
[5] ZHANG Xiaolong,LIU Ying,SUN Qiang.Radiometric calibration of uncooled long-wave infrared thermal imager with high-precision[J].Chinese Optics,2012,5(3):235-241.(in Chinese)张晓龙,刘英,孙强.高精度非致冷长波红外热像仪的辐射标定[J].中国光学,2012,5(3):235-241.