| 一种双光路单探头吸收光谱同时测量方法 |
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| 引用本文： | 文小明 吴映虹. 一种双光路单探头吸收光谱同时测量方法[J]. 光谱学与光谱分析, 1998, 18(5): 626-628 |
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| 作者姓名： | 文小明 吴映虹 |
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| 作者单位： | [1]云南大学物理系 [2]昆明虫胶厂 |
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| 摘 要： | 本文介绍一种带源补偿的吸收光谱测量方法，利用锁相放大器选频放大和相干接收的特点，和双光路分光，由单探头同时接收源光强和透射光强。
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| 关 键 词： | 吸收光谱 锁相放大器 光谱分析 测量 |
A KIND OF METHOD FOR MEASURING ABSORBANCE SPECTRUM WITH DUAL BEAM LIGHT AND ONE DETECTOR |
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| X Wen,L Lin,Y Wu. A KIND OF METHOD FOR MEASURING ABSORBANCE SPECTRUM WITH DUAL BEAM LIGHT AND ONE DETECTOR[J]. Spectroscopy and Spectral Analysis, 1998, 18(5): 626-628 |
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| Authors: | X Wen L Lin Y Wu |
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| Affiliation: | Department of Physics, Yunnan University, 650091 Kunming. |
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| Abstract: | A kind of method of measuring spectral transmittivity with source compensated is introduced in this paper.It detects simultaneously intensity of source and transmission light with dual light road and one detector by means of the characters of selective frequence amplifing and coherent detection of a lock in amplifier.The experimental result shows that the method is excellent on overcoming shake of a source and improving signal to noise ratio. |
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| Keywords: | Absorbance spectrum Lock in amplifier |
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