摘要
根据红外探测器对物体辐射的输出响应，从实际测量的角度提出了物体发射率的一般性定义，分析了红外热成像技术进行精确测量的条件，导出了物体温度Ｔｏｂｊ、环境温度Ｔｓｕｒ、物体发射率ηｏ和测量精度ｅ之间的关系，并建立了一套用红外热成像技术精确测定ηｏ的方法。
A general definition of object emissivity ( η o) which is related with the spectral response of detector was put forward for actual measurement. The physical significance of η o was also stated. Its determination using infrared imaging technique was described in detail. According to the analysis of the correlation among object surface temperature ( T obj ),surrounding temperature ( T sur ),object emissivity ( η o) and measurement accuracy ( e ), a measuring method to obtain accurate object emissivity η o was presented. Applications show that the measurement results are satisfactory .
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第3期193-198,共6页
Journal of Infrared and Millimeter Waves
基金
国家自然科学基金
关键词
红外辐射
红外热成像
发射率
精度
温度测量
infrared radiation, infrared imaging, emissivity, measurement accuracy.
