红外光学系统光谱透射比校准技术

李四维; 王学新; 谢毅; 郭羽; 闫晓宇; 杨毓鑫; 张旭

doi:10.5768/JAO202344.0403008

红外光学系统光谱透射比校准技术

doi: 10.5768/JAO202344.0403008

西安应用光学研究所国防科技工业光学一级计量站，陕西西安 710065

基金项目: 国防科工局技术基础项目

详细信息

作者简介:
李四维（1984—），男，硕士，高级工程师，主要从事红外计量测试研究。E-mail：179034675@qq.com

中图分类号: TN216
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- 被引次数: 0
出版历程
- 收稿日期: 2022-05-26
- 修回日期: 2022-11-04
- 网络出版日期: 2023-03-18
- 刊出日期: 2023-07-15

Spectral transmittance calibration technology of infrared optical system

The First Scale Optical Metrology Station of the Science, Technology and Industry for National Defense, Xi'an Institute of Applied Optics, Xi'an 710065, China

摘要

摘要: 针对红外光学系统透射比参数无法准确测量的问题，开展了红外光学系统光谱透射比测量和校准技术研究。通过对积分球法、大面积均匀源法等测量方法进行分析，研究构建了基于回返射法的红外光学系统光谱透射比校准装置，并建立了完整的光谱透射比量值溯源和量传链条。利用该装置实现了2 µm~14 µm波长范围的光谱透射比测量，对测量结果进行不确定度分析，结果为2%。相对于以往的透射比测量装置，该装置的测量结果具有更高的准确性和可靠性。
- 红外光学系统 /
- 光谱透射比测量 /
- 回返射法 /
- 测量不确定度
Abstract: Aiming at the problem that transmittance parameters of infrared optical system cannot be accurately measured, the measurement and calibration technology for spectral transmittance of infrared optical system were studied. Based on the analysis of measurement methods such as integrating sphere method and large-area uniform source method, a calibration device for spectral transmittance of infrared optical system based on method of reflection was studied and constructed, and the complete quantity traceability and quantity transmission chain of spectral transmittance were established. The device was used to measure the spectral transmittance in the wavelength range of 2 µm~14 µm, and the uncertainty analysis of the measurement results showed that the result was 2%. Compared with the previous measurement device, the measurement results of the proposed device have higher accuracy and reliability.
- infrared optical system /
- measurement of spectral transmittance /
- method of reflection /
- measurement uncertainty

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图 1 校准装置原理框图

Fig. 1 Schematic block diagram of calibration device

下载: 全尺寸图片幻灯片

图 2 傅里叶光谱分光系统原理图

Fig. 2 Schematic diagram of system for FTIR

下载: 全尺寸图片幻灯片

图 3 信号采集处理系统原理框图

Fig. 3 Schematic block diagram of system for signal acquisition and processing

下载: 全尺寸图片幻灯片

表 1 2 µm～14 µm波段的中性密度滤光片透射比测量结果

Table 1 Measurement results of transmittance of neutral density filter in 2 µm~14 µm band

测量次数	测量装置
测量次数	红外滤光器透射比测量装置/%	红外光学系统光谱透射比校准装置/%
1	56.86	56.71
2	56.68	57.44
3	56.87	57.40
4	56.66	57.81
5	56.79	57.02
6	56.76	57.32
平均值	56.77	57.27
相对标准偏差	0.30	1.00

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