| 基于固定光栅和CCD技术的近红外光谱分析系统设计 |
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| 引用本文： | 张银桥,赵 博,王 辉,毛文华,张小超.基于固定光栅和CCD技术的近红外光谱分析系统设计[J].农业工程学报,2009,25(9):176-181. |
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| 作者姓名： | 张银桥 赵 博 王 辉 毛文华 张小超 |
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| 作者单位： | 中国农业机械化科学研究院,北京,100083 |
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| 基金项目： | 国家科技支撑计划（2006BAD11A12） |
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| 摘 要： | 该文设计了一种基于线阵电荷耦合器件和固定光栅的近红外光谱分析系统。主要设计了电荷耦合器件的驱动电路、光谱信号采集电路、固定光栅光学系统、光源控制系统、电荷耦合器件温度控制系统及样品旋转台的控制系统。并利用MPA光谱仪验证了近红外光谱分析方法用于谷物品质检测的可行性，运用多种预处理方法进行了优化，其中采取一阶导数与附加散射校正结合的预处理效果较优。利用CA-06光栅光谱分析仪建立了小麦水分、蛋白的偏最小二乘法模型，验证了仪器性能的稳定性和准确性。
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| 关 键 词： | 农产品，近红外光谱，设计，品质检测，光源系统，电荷耦合器件温度控制 |
| 收稿时间： | 8/4/2009 12:00:00 AM |
| 修稿时间： | 2009/8/24 0:00:00 |
Technology of near infrared spectroscopy analysis system design based on fixed grating and charge-coupled device |
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| Zhang Yinqiao,Zhao Bo,Wang Hui,Mao Wenhua and Zhang Xiaochao.Technology of near infrared spectroscopy analysis system design based on fixed grating and charge-coupled device[J].Transactions of the Chinese Society of Agricultural Engineering,2009,25(9):176-181. |
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| Authors: | Zhang Yinqiao Zhao Bo Wang Hui Mao Wenhua and Zhang Xiaochao |
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| Institution: | Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China,Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China,Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China,Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China and Chinese Academy of Agricultural Mechanization Sciences, Beijing 100083, China |
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| Abstract: | Near infrared(NIR) spectroscopy analysis system was designed based on a fixed grating and a linear array charge-coupled device (CCD). The main content includes CCD drive circuit, spectrum signal acquisition circuit, fixed grating optical system, light source control system, CCD temperature control system and sample turntable control system. It was verified that the NIR spectral analysis method was feasible in testing the quality of grain by using the MPA Fourier spectrometer such as moisture and protein components of wheat. A variety of pretreatment methods were used to optimize the spectral data, and the optimal treatment means was the first derivative with multiplicative scatter correction. The CA-06 instrument performance and accuracy were verified, and wheat moisture and protein models were established. |
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| Keywords: | agricultural products near infrared spectroscopy design quality detection light system CCD temperature control |
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