|
|
Study on the Performance of the Low-temperatureBlackbody Radiation Source |
ZHAO Yi-kun1,WANG Jing-hui2,YUAN Zun-dong2,XUE Wen-yan1 |
1. Xinjiang Uygur Autonomous Region Research Institute of Measurement and Testing, Urumchi,Xinjiang 830011, China
2. National Institute of Metrology, Beijing 100029, China |
|
|
Abstract A new low-temperature blackbody radiation source is developed as low as -30 ℃ by semiconductor refrigeration technology and heat pipe technology. The temperature stability is better than 0.02 ℃/20min, axial temperature uniformity of this cavity wall is better than 0.3 ℃ and the effective emissivity of the heat pipe cavity is higher than 0.999 2 by experimental research. The effective emissivity of the blackbody cavity is evaluated by optical ray tracing with a Monte Carlo method, it is calculated that the emissivity of the heat pipe cavity from the center to the edge is gradually decreasing, and the average rate of change of the emissivity is only 0.06 ‰, it shows that the axial uniformity of the temperature field has little effect on the normal mean effective emissivity.
|
Received: 23 May 2016
Published: 11 August 2017
|
|
|
|
|
[1]Chu B, Machin G. A low-temperature blackbody reference source to -40℃[J]. Meas Sci technol,1999,10(1):1-6.
[2]傅磊,赵琪. 正辛烷/不锈钢热管式黑体源[J]. 计量学报,1989,10(3):193-197.
[3]李吉林,肖功弼,俞伦鹏. 辐射测温和检定/校准技术[M].北京:中国计量出版社,2009.
[4]Ko H Y, Wen B J, Tsa S F, et al. A high-emissivity blackbody with large aperture for radiometric calibration at low-temperature[J].Int J Thermophys,2009,30(1):98-104.
[5]戴景民,何瑾,陈文贤,等. 红外标准辐射源特性的蒙特-卡罗解[J]. 红外与毫米波学报,1993,12(3): 189-194.
[6]黄东涛,路家钦,段宇宁,等. 黑体空腔发射率计算的蒙特卡罗模型[J]. 清华大学学报(自然科学版),1997,37(2):28-31.
[7]Yan X K, Duan Y N , Ma C F, et al. Construction of sodium heat-pipe furnaces and the isothermal characteristics of the furnaces[J]. Int J Thermophys,2011,32(1):494-504.
[8]黄燊彦,郝小鹏,王景辉,等. 铯、钠标准黑体辐射源研制及性能评价[J]. 计量学报,2014,35(2):120-124. |
|
|
|