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農(nóng)畜產(chǎn)品安全無損檢測掃描式拉曼光譜成像系統(tǒng)設(shè)計
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國家重點(diǎn)研發(fā)計劃項(xiàng)目(2016YFD0400905)


Design of Line-scan Raman Imaging System for Nondestructive Detection of Agricultural and Livestock Products Safety
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    摘要:

    構(gòu)建了用于農(nóng)畜產(chǎn)品安全檢測的掃描式拉曼光譜成像檢測系統(tǒng),對其硬件和軟件分別進(jìn)行了搭建和設(shè)計,,實(shí)現(xiàn)了拉曼光譜和圖像同步獲取,。根據(jù)檢測的實(shí)際需求和精度要求確定了檢測系統(tǒng)中拉曼成像光譜儀,、CCD相機(jī),、鏡頭、激光光源,、移動平移臺等主要元器件,。開發(fā)了拉曼光譜成像檢測系統(tǒng)實(shí)時檢測與分析軟件。軟件以LabView為主開發(fā)環(huán)境,,實(shí)現(xiàn)了對CCD相機(jī),、激光光源等硬件的控制,利用LabView與Matlab混合編程,,完成數(shù)據(jù)的提取,、分析計算與結(jié)果保存,通過LabView與ENVI的混合編程,,完成掃描線圖像的實(shí)時合成和顯示,。對系統(tǒng)進(jìn)行了安裝和性能測試,光譜校正確定了CCD相機(jī)探測的拉曼光譜范圍為-679.3~2885.7cm-1,,空間校正確定了系統(tǒng)實(shí)際的空間分辨率為0.22mm/像素,。構(gòu)建的拉曼光譜成像檢測系統(tǒng)可快速、無損獲取樣品拉曼光譜和圖像信息,。

    Abstract:

    The scanning Raman imaging detection system was constructed, and the Raman spectrum and Raman image can be acquired. In accordance with the actual needs and the detection accuracy, the Raman imaging spectrometer, CCD cameras, lenses, laser light, mobile translation stage and other major components were selected. The real-time detection and analysis software of the Raman imaging detection system was developed by using LabView programming. The detection software interface was designed by applying modular and integrated design ideas to the LabView-based software development environment. By using the software, the CCD camera, laser light source and mobile translation stage controls, parameter settings and hardware detection state monitoring can be achieved, real-time collection and display of synthetic Raman image of test sample and Raman spectral curve dynamic display can also be completed. Data acquisition, analysis and calculation results saving were completed by using Matlab algorithms in LabView. The image synthesis and real-time display were completed using ENVI programming in LabView. One-button operation design was used for the software and it had the advantages of simple interface, easy operation and software portability. By combining with the software, the hardware detection system can totally meet the requirement of real-time analysis and application. Then, the system was installed and its performance was tested. The corrected spectral CCD camera can detect the Raman spectral range of -679.3~2885.7cm-1. The system ensured the actual spatial resolution was 0.22mm/pixel via space calibration, stability of test performed well, and Raman images acquisition can be achieved.

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翟晨,彭彥昆,Chao Kuanglin,趙娟,李永玉,李延.農(nóng)畜產(chǎn)品安全無損檢測掃描式拉曼光譜成像系統(tǒng)設(shè)計[J].農(nóng)業(yè)機(jī)械學(xué)報,2016,47(12):279-284. Zhai Chen, Peng Yankun, Chao Kuanglin, Zhao Juan, Li Yongyu, Li Yan. Design of Line-scan Raman Imaging System for Nondestructive Detection of Agricultural and Livestock Products Safety[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(12):279-284.

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  • 收稿日期:2016-10-18
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  • 在線發(fā)布日期: 2016-12-10
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