Realization of the new national primary scale of spectral radiance and spectral irradiance

Cai-hong Dai; Zhifeng Wu; Jia-lin Yu

doi:10.1117/12.2032217

30 August 2013 Realization of the new national primary scale of spectral radiance and spectral irradiance

Cai-hong Dai, Zhifeng Wu, Jia-lin Yu

Proceedings Volume 8910, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Spectrometer Technologies and Applications; 89100D (2013) https://doi.org/10.1117/12.2032217
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

Based on new high temperature blackbody (HTBB) BB3500M and optical feedback control system, the new national primary standard apparatus of spectral radiance and spectral irradiance are evaluated and established at National Institute of Metrology (NIM). The stability, uniformity, repeatability and measurement uncertainty of the apparatus are promoted greatly compared to the former facility. The measurement uncertainty of temperature was decreased to 0.64K (k=1) when BB3500M blackbody is operating at 2980K, which is traceable to the Pt-C and Re-C fixed point blackbodies of NIM. Wavelength measurement range of spectral radiance and spectral irradiance are extended to 220nm~2550nm and 230nm~2550nm respectively, which satisfy the full wavelength requirement of CCPR-S1 spectral radiance international comparison.

Citation Download Citation

Cai-hong Dai, Zhifeng Wu, and Jia-lin Yu "Realization of the new national primary scale of spectral radiance and spectral irradiance", Proc. SPIE 8910, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Spectrometer Technologies and Applications, 89100D (30 August 2013); https://doi.org/10.1117/12.2032217

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