Vacuum radiance temperature national standard facility for Infrared remote sensors of Chinese Fengyun meteorological satellites

HAO Xiao-peng; SONG Jian; SUN Jian-ping; XU Min; YUAN Zun-dong; LIU Zeng-lin

doi:10.3788/OPE.20152307.1845

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Vacuum radiance temperature national standard facility for Infrared remote sensors of Chinese Fengyun meteorological satellites

更新时间：2020-08-12

- Vacuum radiance temperature national standard facility for Infrared remote sensors of Chinese Fengyun meteorological satellites
- Optics and Precision Engineering Vol. 23, Issue 7, Pages: 1845-1851(2015)
- 作者机构：
  
  1. 中国计量科学研究院热工计量科学研究所北京,100029
  2. 成都理工大学,四川成都,610059
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152307.1845
  CLC： P414.4;TP722.5
- Received：20 March 2015，
  
  Revised：21 April 2015，
  
  Published：25 July 2015
- 稿件说明：
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郝小鹏, 宋健, 孙建平等. 风云卫星的红外遥感亮度温度国家计量标准装置[J]. 光学精密工程, 2015,23(7): 1845-1851

HAO Xiao-peng, SONG Jian, SUN Jian-ping etc. Vacuum radiance temperature national standard facility for Infrared remote sensors of Chinese Fengyun meteorological satellites[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 1845-1851
郝小鹏, 宋健, 孙建平等. 风云卫星的红外遥感亮度温度国家计量标准装置[J]. 光学精密工程, 2015,23(7): 1845-1851 DOI： 10.3788/OPE.20152307.1845.

HAO Xiao-peng, SONG Jian, SUN Jian-ping etc. Vacuum radiance temperature national standard facility for Infrared remote sensors of Chinese Fengyun meteorological satellites[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 1845-1851 DOI： 10.3788/OPE.20152307.1845.

摘要

综述了国际上美国、德国、俄罗斯的典型红外遥感亮度温度标准装置的研究现状

着重介绍了由中国计量科学研究院研制的用于风云卫星红外载荷黑体定标的红外遥感亮度温度国家计量标准装置(VRTSF)。给出了VRTSF的设计方案

描述了它的结构和光路。设计了满足风云卫星红外载荷定标黑体工作环境的真空低背景实验舱

建立了满足量值溯源需求的标准黑体辐射源作为量值标准器。标准变温黑体辐射源的温度覆盖190 K~340 K

口径为30 mm

空腔发射率为0.999 9

温度不确定度优于50 mK@300 K/10

=2)。该装置的光谱为(1-1 000)

光谱分辨率为0.2 cm

-1

可满足多种红外载荷的定标需求。该装置具有高温度不确定度水平、高光谱分辨率和扩展性强等特点

如未来该装置温度覆盖至(100-500)K

将会满足大部分红外载荷量值的溯源需求。

Abstract

The state-of-the art of the typical national standard vacuum radiance temperature facilities for infrared remote sensing in America

Germany

and Russia were introduced. Especially

the Vacuum Radiance Temperature National Standard Facility (VRTSF) developed by National Institute of Metrology of China for calibrating the radiance temperature of Chinese Fengyun meteorological satellite was described in detail. The design scheme of the VRTSF was given and its structure and optical path were introduced. The vacuum reduced background chamber for the big aperture blackbody was built to calibrate the infrared remote sensor

and the standard value of the radiance temperature was transmitted from the standard blackbody to the customer blackbody by a Fourer Transform Infrared Radiometer(FTIR). The temperature range of the standard blackbody is from 190 K to 340 K with a diameter of 30 mm and emissivity of 0.9999 in a cavity. The uncertainty of this blackbody is 5 050 mK@300 K/10

m. The wavelength range of the VRTSF is 1

m to 1 000

m and its resolution is 0.2 cm

-1

which supports the requirements of lots of infrared remote sensing. The VRTSF built at the NIM China is characterized by higher uncertainty

higher spectral resolution and stronger expansibility. The temperature range of the VRTSF will expand to 100 K-500 K in future

which can meet the requirements for calibration of the most of infrared remote sensing instruments.

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Keywords

references

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