非制冷红外热成像测温关键技术研究  

Research on Key Technologies of Uncooled Infrared Thermal Imaging Temperature Measurement

作　　者：曹彦鹏 张圆圆 杨将新[1,2] CAO Yanpeng;ZHANG Yuanyuan;YANG Jiangxin(State Key Laboratory of Fluid Power and Mechatronic Systems,Zhejiang University Hangzhou,310027,China;Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province,Zhejiang University Hangzhou,310027,China)

机构地区：[1]浙江大学流体动力与机电系统国家重点实验室,杭州310027 [2]浙江大学浙江省先进制造技术重点研究实验室,杭州310027

出　　处：《振动．测试与诊断》2024年第2期209-216,404,共9页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(52075485)。

摘　　要：非制冷红外热成像测温过程受环境温度、测温距离和大气湿度等诸多因素影响,因此在复杂环境中实现高精度测温颇具挑战。为了满足复杂环境中精确测温的需求,分析并研究了非制冷红外热成像测温误差的主要影响因素和关键补偿技术。首先,针对非制冷红外探测器输出辐射温度易受环境影响的问题,设计了基于粒子群算法优化反向传播神经网络的非制冷红外探测器辐射温度预测算法,实现了不同工作温度下辐射温度的精确预测;其次,针对测温过程中的红外辐射大气衰减现象,设计了基于大气传输软件的近地红外辐射大气透射率计算方法,实现了大气透射率的准确、快速、便捷计算;最后,整合关键误差补偿技术形成了完整的非制冷红外热成像测温方法,并实验验证了以上关键技术对于提高红外测温精度和环境适应性的有效性。The temperature measurement process based on uncooled infrared thermal imaging is challenging to achieve high accuracy in complex environments due to various factors such as ambient temperature,temperature measurement distance,and atmospheric humidity.To achieve accurate temperature measurement requirements in complex environments,the main influencing factors and key correction technologies for uncooled infrared thermal imaging temperature measurement errors have been analyzed and studied.Firstly,an algorithm for predicting the radiation temperature of uncooled infrared detectors is designed based on particle swarm optimization for backpropagation neural networks,addressing the influence of environmental factors on the radiation temperature of uncooled infrared detectors.This algorithm achieved accurate estimation of radiation temperature under different working environment temperatures.Secondly,a method based on atmospheric transmission software is designed to accurately,quickly,and conveniently calculate the atmospheric transmittance of near-ground infrared radiation,facilitating the correction of atmospheric environmental interference during the temperature measurement process.Finally,a comprehensive uncooled infrared thermal imaging temperature measurement method is designed by integrating the proposed essential correction techniques,which experimentally verified the effectiveness of the proposed method in improving infrared temperature measurement accuracy and environmental adaptability.

关 键 词：非制冷红外热成像 温度测量 大气透射率 辐射温度 

分 类 号：TN219[电子电信—物理电子学] TH811[机械工程—仪器科学与技术]