| 基于数字微镜技术的阿达玛变换近红外光谱仪 |
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| 作者姓名： | Liu J Chen FF Liao CS Xu Q Zeng LB Wu QS |
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| 作者单位： | 武汉大学电子信息学院,湖北武汉,430079 |
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| 基金项目： | 国家“十五”攻关项目(2004BA210A02); 国家自然科学基金项目(60808010); 中国石油科技创新基金项目(2009D-5006-01-06)资助 |
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| 摘 要： | 构建了一个基于数字微镜技术的新型阿达玛变换近红外光谱仪.光学信号采用光纤引入,以光栅作为分光元件,利用数字微镜代替传统的机械式阿达玛模板进行光学编码调制,使用单点InGaAs红外探测器检测调制后的光信号,通过快速阿达玛解码还原出原始光谱.通过实验检验了光谱仪的分辨率、信噪比、稳定性以及谱图获取速度等指标.实验结果表明,...
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| 关 键 词： | 近红外光谱仪 阿达玛变换 数字微镜 |
A digital micromirror device-based Hadamard transform near infrared spectrometer |
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| Liu J,Chen FF,Liao CS,Xu Q,Zeng LB,Wu QS.A digital micromirror device-based Hadamard transform near infrared spectrometer[J].Spectroscopy and Spectral Analysis,2011,31(10):2874-2878. |
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| Authors: | Liu Jia Chen Fen-Fei Liao Cheng-Sheng Xu Qian Zeng Li-Bo Wu Qiong-Shui |
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| Institution: | LIU Jia,CHEN Fen-fei,LIAO Cheng-sheng,XU Qian,ZENG Li-bo,WU Qiong-shui*School of Electronic Information,Wuhan University,Wuhan 430079,China |
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| Abstract: | A Hadamard transform near infrared spectrometer based on a digital micromirror device was constructed.The optical signal was collected by optical fiber,a grating was used for light diffraction,a digital micromirror device(DMD) was applied instead of traditional mechanical Hadamard masks for optical modulation,and an InGaAs near infrared detector was used as the optic sensor.The original spectrum was recovered by fast Hadamard transform algrithms.The advantages of the spectrometer,such as high resolution,sig... |
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| Keywords: | Near infrared spectrometer Hadamard transform Digital micromirror device |
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