Optical and structural characteristics of low background radiometric calibration facility

LIANG Pei

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Optical and structural characteristics of low background radiometric calibration facility

更新时间：2020-08-12

- Optical and structural characteristics of low background radiometric calibration facility
- Optics and Precision Engineering Vol. 11, Issue 6, Pages: 576-580(2003)
- 作者机构：
  
  苏州大学, 现代光学技术研究所, 江苏, 苏州, 215006
- 作者简介：
- 基金信息：
- DOI：
  CLC： O432.1
- Received：16 April 2003，
  
  Revised：13 October 2003，
  
  Published Online：15 December 2003，
  
  Published：15 December 2003
- 稿件说明：
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梁培. 低背景辐射校准装置的光机特性[J]. 光学精密工程, 2003,(6): 576-580

LIANG Pei. Optical and structural characteristics of low background radiometric calibration facility[J]. Editorial Office of Optics and Precision Engineering, 2003,(6): 576-580
梁培. 低背景辐射校准装置的光机特性[J]. 光学精密工程, 2003,(6): 576-580 DOI：

LIANG Pei. Optical and structural characteristics of low background radiometric calibration facility[J]. Editorial Office of Optics and Precision Engineering, 2003,(6): 576-580 DOI：

摘要

低背景辐射校准装置由多个舱室和黑体组成

其突出特点是模块式的结构和辐射的光学偏转.模块式结构使得校准装置可以工作于多种方式

如辐射源的校准、辐射探测设备的校准和辐射度的溯源.校准装置内的标准辐射

参考辐射和待测辐射由光学偏转方式进行同轴

使装置避免了大型导轨平台的使用.工作时

校准装置可以抽真空到1.33×10

-2

Pa.充液氮后

校准装置的背景温度低于80 K.这些特点使校准装置具有足够的能力进行-60～+80℃温度区间目标的光谱辐射度校准.

Abstract

A low background radiometric calibration facility (LBRCF) consists of chambers and blackbodies

and it features modular structure and optical deflection. The modular structure enables LBRCF to perform several functions

such as radiator calibration

radiometer calibration and radiometric tracing to the source. In LBRCF

standard radiation

reference radiation and the radiation under calibration are coaxial by optical deflection

and the use of large-scale sliding tables is therefore avoided. During operation

LBRCF can be pumped to a vacuum level of 1.33×10

-2

Pa (10

-4

mmHg). With liquid nitrogen filled

the background temperature of LBRCF is below 80K. All these characteristics enables LBRCF to do spectroradiometry calibration in the target temperature range -60℃ to 80℃.

关键词

Keywords

references

WICKMAN H A. Development status of the cryocooler and thermal management system for the atmospheric infrared sounder[J].SPIE,1998,3437:261-272.

EBNER S C, PARR A C. Update on the low background IR calibration facility at the National Institute of Standards and Technology[J]. SPIE,1989,1110:49-60.

RICE J P,JOHNSEN B C.NIST activities in support of space-based radiometric remote sensing[J]. SPIE,2001,4450:108-126.

SAPRISKY V I. Radiometric standards in the USSR[J].SPIE,1991,1493:58-65.

ZHANG J Y. Standard of blackbody radiation in normal temperature[J]. Journal of Metrology,1989,10(1):1-6.(in Chinese)

SAPRISKY V I, PROKHOROV A V. Spectral effective emissivities of nonisothermal cavities calculated by the Monte Carlo method[J]. Appl Opt,1995,34(25):5645-5652.

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