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太阳辐照绝对辐射计主光阑面积测量

Main Aperture Area Measurement of the SIAR

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摘要

精确且已知面积的主光阑对于搭载在气象卫星上的太阳辐照绝对辐射计(SIAR)有着重要作用,其带来的不确定度分量是太阳辐射计测量辐照度不确定度的重要组成部分.有效面积法是一种测量主光阑面积的方法,其通过叠加高斯光束形成一个统一的照度均匀分布的光源区域,利用辐射测量中光阑对光束的限制效应定义主光阑面积.对SIAR 进行简单介绍,主要对有效面积法的测量原理进行理论分析及模拟仿真,提出了具体搭建测量装置的方案,并对主光阑面积进行测量,测量合成不确定度达到8.2 × 10-5 .该测量方法提高了太阳辐照绝对辐射计主光阑面积的测量精度,使得太阳辐照绝对辐射计测量辐照度的标准不确定度从8 × 10-4 提高到6.3 × 10-4 .

Abstract

For solar irradiance absolute radiometer (SIAR) boarded on meteorological satellites,the main aperture of known area plays an important role.The uncertainty of the main aperture area is at present one of the largest components of the uncertainty in SIAR measurement.The effective area method is a way to measure the main aperture area.It defines the main aperture area based on the aperture of beam- limiting effect in radiometric measurement.Through a superposition of Gaussian beams to generate a known constant irradiance covers the surface of the measured apertures.The ratio of the flux to the irradiance gives the aperture area.We introduce the SIAR,and expound theoretical analysis of the measurement method using Matlab and TracePro software to make simulations.Put forward the specific measurement scheme,and make the uncertainty budget of the measurement device.The combined measurement uncertainty of the main aperture is about 8.2 × 10-5 .This method improves the measurement accuracy of the main aperture,makes the uncertainty of the irradiance measurement about the SIAR from 8 × 10-4 to 6.3 × 10-4 .

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中图分类号:V11

DOI:10.3788/aos201535.0912003

所属栏目:仪器,测量与计量

基金项目:国家自然科学基金(41227003)

收稿日期:2015-04-18

修改稿日期:2015-05-28

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作者单位    点击查看

陈祥子:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033中国科学院大学, 北京 100049
方伟:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
杨振岭:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
夏志伟:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
王玉鹏:中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033

联系人作者:陈祥子(xzchen913@163.com)

备注:陈祥子(1989—),女,博士研究生,主要从事激光测量方面的研究.

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引用该论文

Chen Xiangzi,Fang Wei,Yang Zhenling,Xia Zhiwei,Wang Yupeng. Main Aperture Area Measurement of the SIAR[J]. Acta Optica Sinica, 2015, 35(9): 0912003

陈祥子,方伟,杨振岭,夏志伟,王玉鹏. 太阳辐照绝对辐射计主光阑面积测量[J]. 光学学报, 2015, 35(9): 0912003

被引情况

【1】唐潇,方伟,王玉鹏. 绝对辐射计一次反射不等效的影响及实验分析. 中国激光, 2016, 43(4): 408003--1

【2】曹佃生,林冠宇,闻宝朋,刘旭堂. 红外双光栅光谱仪波长扫描机构设计与精度分析. 中国激光, 2017, 44(5): 511002--1

【3】曹佃生,林冠宇,杨小虎,张子辉,闻宝朋. 紫外双光栅光谱仪结构设计与波长精度分析. 中国光学, 2018, 11(2): 219-230

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