| 基于AOTF的在线红外光谱测量系统 |
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| 引用本文： | 李小霞,孙振东,万峰,赵玉春. 基于AOTF的在线红外光谱测量系统[J]. 光电工程, 2002, 29(4): 39-42,45 |
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| 作者姓名： | 李小霞 孙振东 万峰 赵玉春 |
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| 作者单位： | 天津大学精密仪器与光电子工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金(69977015)资助项目，天津市自然科学基金项目(983606911) |
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| 摘 要： | 介绍了一种新型的红外光谱测量系统，它由准直发射系统和聚焦接收系统两大部分组成，以声光可调谐滤光器（AOTF）为色散元件，连续改变AOTF的驱动频率就能实现快速波长扫描，达到实时测量目的。该系统具有结构简单、测量快速等特点，可用于在线有害气体检测和红外光谱分析。实验表明，系统光谱测量范围2．5－5μm，光谱分辨力为10nm。
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| 关 键 词： | 在线红外光谱测量系统 声光可调谐滤光器 AOTF 声光互作用 分光光度 |
| 文章编号： | 1003-501X(2002)04-0039-04 |
| 收稿时间： | 2001-08-15 |
On-line IR spectrum measuring system based on acousto-optic tunable filter |
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| LI Xiao-xia,SUN Zhen-dong,WAN Feng,ZHAO Yu-chun. On-line IR spectrum measuring system based on acousto-optic tunable filter[J]. Opto-Electronic Engineering, 2002, 29(4): 39-42,45 |
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| Authors: | LI Xiao-xia SUN Zhen-dong WAN Feng ZHAO Yu-chun |
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| Abstract: | A novel IR spectrum measuring system is presented. It consists of alignment-transmitting system and focusing-receiving system. With Acousto-Optic Tunable Filter (AOTF) as dispersive element, a quick wavelength scanning can be realized through continuously varying the driving frequency of AOTF and real-time measurement can be attained. The system has the advantages of simple structure and quick measurement. It can be applied to on-line detection of the harmful gas and IR spectrum analysis. The experiments show that its measuring range is 2.5~5mm and spectral resolution is 10nm. |
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| Keywords: | Acousto-optic tunable filter Acousto-optic interaction Infrared spectrum measuring system |
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