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公开(公告)号：US20150185153A1
公开(公告)日：2015-07-02
申请号：US14575381
申请日：2014-12-18
发明人： Li Zhang , Li Jiang , Jianhong Zhang , Hongqiu Wang , Yumin Yi
IPC分类号： G01N21/65
CPC分类号： G01N21/65 , G01N21/658
摘要： Embodiments of the present invention disclose a pesticide residue detection method, comprising the steps: (a) irradiating a sample to be detected by an exciting light and collecting a Raman scattered light from the sample; (b) acquiring a Raman spectrum of the sample from the collected Raman scattered light; and (c) comparing the Raman spectrum with reference Raman spectra for known pesticides in a reference Raman library to determine composition and concentration of the pesticide residue in the sample. The method may achieve effective, convenient and accurate inspection of the pesticide residue in foods, in particular suitable for rapid detection.
摘要翻译： 本发明的实施方式公开了农药残留检测方法，其特征在于，包括以下步骤：（a）用激发光照射被检测体，从所述样品收集拉曼散射光; （b）从所收集的拉曼散射光中获取样品的拉曼光谱; 和（c）将参考拉曼文库中的已知农药的拉曼光谱与参考拉曼光谱进行比较，以确定样品中农药残留的组成和浓度。 该方法可以有效，方便，准确地检测食品中的农药残留，特别适合快速检测。
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公开(公告)号：US09250180B2
公开(公告)日：2016-02-02
申请号：US14495233
申请日：2014-09-24
发明人： Zhiqiang Chen , Li Zhang , Jianhong Zhang , Hongqiu Wang , Ziran Zhao , Yumin Yi , Jianping Gu , Qingping Huang
CPC分类号： G01N21/47 , G01J3/44 , G01N21/65 , G01N21/658 , G01N33/15
摘要： A raman spectrum measuring method for drug inspection is provided, comprising: measuring raman spectrum of a sample to be inspected to acquire an original raman spectrum curve of the sample; determining whether the original raman spectrum curve has a characterizing portion, and if not, measuring a mixture of the sample and an enhancing agent to acquire an enhanced raman spectrum curve of the sample; and if the original raman spectrum curve of the sample to be inspected has a characterizing portion, comparing the original raman spectrum curve of the sample with data in an original raman spectrum database of a drug to determine whether the sample contains the drug, otherwise, comparing the enhanced raman spectrum curve of the sample with data in an enhanced raman spectrum database of the drug to determine whether the sample to be inspected contains the drug.
摘要翻译： 提供了用于药物检查的拉曼光谱测量方法，包括：测量被检样品的拉曼光谱以获得样品的原始拉曼光谱曲线; 确定原始拉曼光谱曲线是否具有特征部分，如果不是，则测量样品和增强剂的混合物以获得样品的增强的拉曼光谱曲线; 如果要检查的样本的原始拉曼光谱曲线具有特征部分，则将样品的原始拉曼光谱曲线与药物的原始拉曼光谱数据库中的数据进行比较，以确定样品是否含有药物，否则比较 增强的拉曼光谱曲线的样品与增强的拉曼光谱数据库中的数据，以确定待检样品是否含有药物。
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公开(公告)号：US10036707B2
公开(公告)日：2018-07-31
申请号：US14576752
申请日：2014-12-19
发明人： Ziran Zhao , Li Zhang , Yingying Geng , Hongqiu Wang , Yumin Yi
CPC分类号： G01N21/65 , G01J3/28 , G01J3/44 , G01J3/4412 , G01N21/87 , G01N2201/06113 , G01N2201/12
摘要： Embodiments of the present invention provide jewel and jade identification method and apparatus. The method comprises the steps: (a) placing a sample to be detected over a light transmission hole formed on a carrying surface of an object table and emitting, by an optical probe disposed below the carrying surface, an exciting light onto the sample through the light transmission hole and then collecting a Raman scattered light from the sample by the optical probe. (b) acquiring a Raman spectrum curve of the sample from the collected Raman scattered light from the sample; and (c) comparing the Raman spectrum curve with a reference Raman spectrum library for jewels and jades to identify the sample. The method and apparatus may achieve effective, convenient and accurate inspections of the jewels and jades.
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公开(公告)号：US10775310B2
公开(公告)日：2020-09-15
申请号：US16232339
申请日：2018-12-26
发明人： Haihui Liu , Hongqiu Wang , Jianhong Zhang
摘要： A detection apparatus, including: a laser configured to emit laser light towards an object to be detected; a Raman spectrometer configured to receive Raman light from the object; an imaging device configured to obtain an image of the object; a light sensor configured to receive light reflected and scattered by the object under irradiation of the laser light, and to determine the power of the received light; and a controller configured to control an operation of the detection apparatus based on the image obtained by the imaging device and the power determined by the light sensor. A detection method using the detection apparatus.
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公开(公告)号：US20190339205A1
公开(公告)日：2019-11-07
申请号：US16473495
申请日：2017-11-17
发明人： Wei Gou , Hongqiu Wang , Huacheng Feng
IPC分类号： G01N21/65
摘要： The disclosure provides a method for removing background from a spectrogram, including: finding out peak information of a raw spectrogram, the peak information including a peak position, a starting point, an ending point, and a peak width w of a peak; processing, within each peak area defined by the starting point and the ending point of each peak of the raw spectrogram, each peak of the raw spectrogram by using a SNIP method so as to obtain background data within each peak area; replacing, within each peak area, data of the raw spectrogram with the background data obtained through processing by using the SNIP method, so as to form a background spectrogram in a fitting way; smoothing the formed background spectrogram; and subtracting the smoothed background spectrogram from the raw spectrogram so as to obtain a spectrogram with removed background.
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公开(公告)号：US10267678B2
公开(公告)日：2019-04-23
申请号：US14577748
申请日：2014-12-19
发明人： Ziran Zhao , Jianhong Zhang , Hongqiu Wang , Weiwei Wang , Zhiming Wang , Yumin Yi
摘要： Embodiments of the present invention provide a Raman spectroscopic inspection method, comprising the steps of: measuring a Raman spectrum of an object to be inspected successively to collect a plurality of Raman spectroscopic signals; superposing the plurality of Raman spectroscopic signals to form a superposition signal; filtering out a florescence interfering signal from the superposition signal; and identifying the object to be inspected on basis of the superposition signal from which the florescence interfering signal has been filtered out. By means of the above method, a desired Raman spectroscopic signal may be acquired by removing the interference caused by a florescence signal from a Raman spectroscopic inspection signal of the object. It may inspect correctly the characteristics of the Raman spectrum of the object so as to identify the object effectively.
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公开(公告)号：US09746404B2
公开(公告)日：2017-08-29
申请号：US14576660
申请日：2014-12-19
发明人： Hongqiu Wang , Yumin Yi , Huacheng Feng , Rui Fan
CPC分类号： G01N5/00 , G01G17/04 , G01J3/44 , G01N21/3577 , G01N21/65
摘要： A method and apparatus for inspection of liquids are disclosed. The method includes inspecting a liquid with a technique selected according to whether the package of the liquid is transparent, semi-transparent or opaque. If the package is transparent or semi-transparent, a Raman spectra technique is used; if the package is opaque, a technique using an electronic scale and a barcode reader is used. In some embodiments, the Raman spectra technique and the technique using barcode reader and electronic scale can be used independently for inspection of the liquid. The inspection apparatus according to the present disclosure has advantages, such as capability of material identification, rapid examination speed, small volume, light weight, portability, low cost, freedom from radiation, and simple maintenance. The method and apparatus according to the present disclosure are suitable for safety inspection in public places having a large number, and fast flow, of people.
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公开(公告)号：US11493447B2
公开(公告)日：2022-11-08
申请号：US16473495
申请日：2017-11-17
发明人： Wei Gou , Hongqiu Wang , Huacheng Feng
摘要： The disclosure provides a method for removing background from a spectrogram, including: finding out peak information of a raw spectrogram, the peak information including a peak position, a starting point, an ending point, and a peak width w of a peak; processing, within each peak area defined by the starting point and the ending point of each peak of the raw spectrogram, each peak of the raw spectrogram by using a SNIP method so as to obtain background data within each peak area; replacing, within each peak area, data of the raw spectrogram with the background data obtained through processing by using the SNIP method, so as to form a background spectrogram in a fitting way; smoothing the formed background spectrogram; and subtracting the smoothed background spectrogram from the raw spectrogram so as to obtain a spectrogram with removed background.
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9.发明申请公开(公告)号：US20210270743A1
公开(公告)日：2021-09-02
申请号：US16313392
申请日：2018-12-19
发明人： Hongqiu Wang , Jiaqian Zuo , Zhuo Chen
摘要： The disclosure provides a Raman spectrum detection apparatus and a method of monitoring detection security thereof. The method includes: emitting excited light by a light source and guiding the excited light to a sample; collecting a light signal generated by the sample under irradiation of the excited light and generating spectrum data representing the light signal; determining a first part representing an excited light component of the light signal and a second part representing a Raman scattered component and a fluorescence component of the light signal, of the spectrum data; calculating a first parameter representing an amplitude of spectral intensity, and a second parameter representing a fluctuation of spectral intensity, of each of the first and second parts; comparing the first parameters, and comparing the second parameters, of the first and second parts; and determining whether or not the sample is a deep-colored substance based on comparison results.
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公开(公告)号：US10852187B2
公开(公告)日：2020-12-01
申请号：US16313690
申请日：2018-12-19
发明人： Haihui Liu , Hongqiu Wang , Jianhong Zhang , Jiaqian Zuo
摘要： The disclosure provides a Raman spectrum detection apparatus, including: a laser configured to emit laser light to an object to be detected; a Raman spectrometer configured to receive Raman light from the object; an imaging device configured to obtain an image of the object; and a controller configured to control an operation of the detection apparatus based on grayscales of the image. There is further provided a Raman spectrum detection method.
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