| 低背景辐射校准装置的光机特性 |
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| 引用本文： | 梁培.低背景辐射校准装置的光机特性[J].光学精密工程,2003,11(6):576-580. |
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| 作者姓名： | 梁培 |
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| 作者单位： | 苏州大学,现代光学技术研究所,江苏,苏州,215006 |
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| 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.
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| 关 键 词： | 辐射校准准置 光谱辐射度 低背景 抽真空 模式结构 校准 |
| 文章编号： | 1004-924X(2003)06-0576-05 |
| 收稿时间： | 2003/4/16 |
| 修稿时间： | 2003年4月16日 |
Optical and structural characteristics of low background radiometric calibration facility |
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| LIANG Pei.Optical and structural characteristics of low background radiometric calibration facility[J].Optics and Precision Engineering,2003,11(6):576-580. |
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| Authors: | LIANG Pei |
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| Affiliation: | Modern Optical Technology Institute, Suzhou University, Suzhou 215006, China |
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| 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℃. |
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| Keywords: | radiometric calibration facility spectroradiometry low background vacuum module structure calibration |
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