基于太赫兹时域光谱技术的面粉品质快速无损检测研究
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摘要
太赫兹(THz)波能够穿透大多数干的介电材料(塑料、陶瓷、衣物等),可实现对带包装物品的质量检测。为了研究THz光谱技术对带包装面粉的无损检测,首先对不带包装面粉进行太赫兹时域谱可行性分析及建模研究。对101份不同种类的面粉样本,用Tera Pulse 4000的太赫兹脉冲光谱仪采集了其太赫兹时域谱,对光谱预处理后,用偏最小二乘法(PLS)算法建立了面粉中3个指标水分、灰分、面筋的定量分析模型。各模型的预测相关系数都在0.89以上,研究结果表明,通过太赫兹时域光谱技术对面粉品质进行无损、快速检测具有可行性,对下一步太赫兹光谱技术直接对带包装的面粉进行检测研究奠定了坚实的基础。
Terahertz(THz) waves can penetrate most dry dielectric materials(plastics, ceramics, clothing, etc.), and can be used for quality inspection of packaged items. First, the terahertz time-domain spectral feasibility analysis and modeling studies were carried out on unpackaged flour in order to study the nondestructive testing of packaged flour by THz spectroscopy, flour were studied. Terahertz time domain spectra of 101 different kinds of flour samples were collected by the TeraPulse 4000 terahertz pulse spectrometer. After spectral pretreatment, a quantitative analysis model of moisture, ash and gluten in three parameters of flour was established by partial least squares(PLS) algorithm. The prediction correlation coefficients of each model are all above 0.89. The results of the study showed that it was feasible to perform non-destructive and rapid detection of flour quality by terahertz time-domain spectroscopy, which laid a solid foundation for the next step of terahertz spectroscopy to directly detect the flour with packaging.
Terahertz(THz) waves can penetrate most dry dielectric materials(plastics, ceramics, clothing, etc.), and can be used for quality inspection of packaged items. First, the terahertz time-domain spectral feasibility analysis and modeling studies were carried out on unpackaged flour in order to study the nondestructive testing of packaged flour by THz spectroscopy, flour were studied. Terahertz time domain spectra of 101 different kinds of flour samples were collected by the TeraPulse 4000 terahertz pulse spectrometer. After spectral pretreatment, a quantitative analysis model of moisture, ash and gluten in three parameters of flour was established by partial least squares(PLS) algorithm. The prediction correlation coefficients of each model are all above 0.89. The results of the study showed that it was feasible to perform non-destructive and rapid detection of flour quality by terahertz time-domain spectroscopy, which laid a solid foundation for the next step of terahertz spectroscopy to directly detect the flour with packaging.
引文
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[13]闫战科,张宏建,应义斌.THz技术在农产品/食品品质检测中的应用[J].光谱学与光谱分析,2007,(11):2228-2234
[14]陈阳,谭佐军,谢静,等.食品质量与安全中的THz技术应用进展[J].食品工业科技,2014,35(14):49-55,87
[15] Catalogue of human tissue optical properties at terahertz frequencies[J]. Journal of Biological Physics,2003,29(2):123-128
[16] Banerjee D, Spiegel W V, Thomson M D, et al. Diagnosing water content in paper by terahertz radiation[J].Optics Express,2008,16(12):9060-9066
[17] Probst T, Scheller M, Koch M. Nondestructive thickness determination of plastic pipes in a nearby industrial environment using terahertz time domain spectroscopy[C]. International Conference on Infrared.IEEE,2011:1-2
[18]付秀华,李闻达,夏燚,等.小麦粉中掺杂滑石粉的太赫兹光谱检测[J].中国粮油学报,2013,28(3):110-112
[19]秦建平,牛波,张元,等.太赫兹波谱检测面粉增白剂的研究[J].粮油食品科技,2013,21(2):39-41
[2]窦颖,孙晓荣,刘翠玲,等.基于拉曼光谱技术的面粉品质快速检测[J].食品科学,2014,35(22):185-189
[3]张亦婷,刘翠玲,位立娜.基于光谱技术的芝麻油掺假定性分析研究[J].食品科技,2016,41(09):257-261
[4]张宝月,李九生.基于太赫兹光谱的小麦粉中滑石粉测定技术[J].中国粮油学报,2010,25(07):113-116
[5]秦建平,牛波,张元,等.太赫兹波谱检测面粉增白剂的研究[J].粮油食品科技,2013,21(02):39-41
[6] Xiaoli Z, Jiusheng L. Diagnostic techniques of talc powder in flour based on the THz spectroscopy[C]. International Photonics&Optoelectronics Meetings,中国光学学会,2010:012234
[7] Ge H,Jiang Y,Xu Z, et al. Identification of wheat quality using THz spectrum[J]. Optics Express,2014,22(10):12533-12544
[8]梁培龙,戴景民.太赫兹科学技术的综述[J].自动化技术与应用,2015,34(06):1-8,15
[9]张栋文,袁建民.太赫兹技术概述[J].国防科技,2015,36(02):12-16
[10]赵国忠.太赫兹科学技术研究的新进展[J].国外电子测量技术,2014,33(02):1-6,20
[11]谢丽娟,徐文道,应义斌,等.太赫兹波谱无损检测技术研究进展[J].农业机械学报,2013,44(07):246-255
[12]李鹏鹏,张元,葛宏义,等.太赫兹光谱技术在食品质量安全检测中的应用研究进展[J].食品工业科技,2017,38(03):372-375
[13]闫战科,张宏建,应义斌.THz技术在农产品/食品品质检测中的应用[J].光谱学与光谱分析,2007,(11):2228-2234
[14]陈阳,谭佐军,谢静,等.食品质量与安全中的THz技术应用进展[J].食品工业科技,2014,35(14):49-55,87
[15] Catalogue of human tissue optical properties at terahertz frequencies[J]. Journal of Biological Physics,2003,29(2):123-128
[16] Banerjee D, Spiegel W V, Thomson M D, et al. Diagnosing water content in paper by terahertz radiation[J].Optics Express,2008,16(12):9060-9066
[17] Probst T, Scheller M, Koch M. Nondestructive thickness determination of plastic pipes in a nearby industrial environment using terahertz time domain spectroscopy[C]. International Conference on Infrared.IEEE,2011:1-2
[18]付秀华,李闻达,夏燚,等.小麦粉中掺杂滑石粉的太赫兹光谱检测[J].中国粮油学报,2013,28(3):110-112
[19]秦建平,牛波,张元,等.太赫兹波谱检测面粉增白剂的研究[J].粮油食品科技,2013,21(2):39-41
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