Acta Metrologica Sinica  2015, Vol. 36 Issue (6A): 50-54    DOI: 10.3969/j.issn.1000-1158.2015.z1.13
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Research of 190K to 340K Vacuum Standard Blackbody Radiance Temperature  Source
XU Min1,2,HAO Xiao-peng2,SONG Jian2,SUN Jian-ping2,GONG Lü-yu1,2, XU Chun-yuan2,3,WEN Ping2,YUAN Zun-dong2,WU Jian-ping1
1. College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, Sichuan 610059, China
2. National Institute of Metrology, Beijing 100029, China
3. School of Science, Xi′an Polytechnic University, Xi′an, Shaanxi 710048, China
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Abstract  The structure and operating principle of the 190~340K vacuum standard blackbody source for vacuum radiance temperature national standard facility (VRTSF) is detaily described. The major technical parameters are tested, including the axial temperature uniformity of the blackbody cavity, temperature stability and so on. The emissivity of the blackbody cavity is calculated, influence of which is analyzed from the uniformity of temperature field. The experiments results show that the axial temperature uniformity of the blackbody cavity is 0.028K and the temperature stability is 0.008K at the temperature of 300K. The emissivity of the blackbody cavity is better than 0.999 9. The uncertainty for the standard blackbody is analyzed, and the combined standard uncertainty is less than 0.030K when the wavelength is between 4 to 14 μm.
Key wordsmetrology      blackbody radiation source      blackbody cavity      emissivity      uniformity      stability      uncertainty     
PACS:  TB942  
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XU Min
HAO Xiao-peng
SONG Jian
SUN Jian-ping
GONG Lü-yu
XU Chun-yuan
WEN Ping
YUAN Zun-dong
WU Jian-ping
Cite this article:   
XU Min,HAO Xiao-peng,SONG Jian, et al. Research of 190K to 340K Vacuum Standard Blackbody Radiance Temperature  Source[J]. Acta Metrologica Sinica, 2015, 36(6A): 50-54.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2015.z1.13     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2015/V36/I6A/50
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