摘要
提出了一种用于标定红外热像仪的黑体辐射源，黑体腔形状为球形，开孔直径与球腔直径之比为0.13。由恒温液体浴保证黑体腔温度分布均匀，采用水浴和酒精浴时，壁耐最大温差低于0．2℃，油浴时壁面最大温差低于0.3℃。该黑体辐射源升温快，控温稳定性好，工作温度范围可达-20～300℃，有效比辐射率大于0.998。
A kind of blackbody radiation source for calibration of infrared thermal imager is presented. The geometry of radiation cavity is sphere and the ratio of aperture/sphere diameter is 0. 13, In water and alcohol bath the maximum deviation of wall temperature of cavity is less than 0.2℃ and in silicon oil it is less than 0.3℃. The response time of the blackbody is short and the stability of controlling temperature is good. Temperature range of it is from -20℃ to 300℃ and its effective emissivity is above 0. 998.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2006年第5期533-535,共3页
Chinese Journal of Scientific Instrument
关键词
黑体
校准
红外热像仪
温度测量
Blackbody Calibration Infrared thermal imager Temperature measurement
