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1. 发明申请

US20150185153A1 Pesticide Residue Detection Method 审中-公开
标题翻译：农药残留检测方法
公开(公告)号：US20150185153A1
公开(公告)日：2015-07-02
申请号：US14575381
申请日：2014-12-18
申请人： Nuctech Company Limited , Tsinghua University
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。

2. 发明授权

US09250180B2 Raman spectrum measuring method for drug inspection 有权
标题翻译：用于药物检查的拉曼光谱测量方法
公开(公告)号：US09250180B2
公开(公告)日：2016-02-02
申请号：US14495233
申请日：2014-09-24
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhiqiang Chen , Li Zhang , Jianhong Zhang , Hongqiu Wang , Ziran Zhao , Yumin Yi , Jianping Gu , Qingping Huang
IPC分类号： G01J3/44 , G01N21/47 , G01N33/15 , G01N21/65
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。

3. 发明授权

US08891081B1 Raman spectroscopy method of measuring melamine contents in dairy products having different matrixes 有权
标题翻译：测量具有不同基质的乳制品中三聚氰胺含量的拉曼光谱法
公开(公告)号：US08891081B1
公开(公告)日：2014-11-18
申请号：US14145454
申请日：2013-12-31
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhiqiang Chen , Li Zhang , Jianhong Zhang , Hongqui Wang , Ziran Zhao , Jianping Gu , Zhiming Wang , Qingping Huang , Yumin Yi
IPC分类号： G01J3/44 , G01N21/65
CPC分类号： G01N21/65
摘要： A raman spectroscopy method of measuring melamine contents in dairy products having different matrixes. The method includes: (a) establishing a database of characteristic curves of dairy products having different matrixes; (b) taking several copies of the dairy products having one certain unknown matrix and adding melamine standard solutions having different concentrations therein, to obtain a series of dairy product samples in which the relative concentrations of the melamine are known; (c) performing raman spectrum testing analysis and obtaining corresponding characteristic peak intensities to obtain a slope of the characteristic curve showing variation of the characteristic peak intensities with the relative concentrations of the melamine; (d) searching the database of step (a) using the slope of the characteristic curve of the dairy product samples to find a matching characteristic curve, and (e) calculating concentration of melamine in the dairy products by using the matched characteristic curve and the characteristic peak intensity.
摘要翻译：测量具有不同基质的乳制品中三聚氰胺含量的拉曼光谱法。该方法包括：（a）建立具有不同矩阵的乳制品特征曲线数据库; （b）取几份具有一定未知基质的乳制品，并加入其中浓度不同的三聚氰胺标准溶液，以获得其中已知三聚氰胺的相对浓度的一系列乳制品样品; （c）进行拉曼光谱测试分析并获得相应的特征峰强度，以获得特征曲线的斜率，显示特征峰强度与三聚氰胺的相对浓度的变化; （d）使用乳制品样品的特征曲线的斜率来搜索步骤（a）的数据库，以找到匹配的特征曲线，以及（e）通过使用匹配的特征曲线计算乳制品中三聚氰胺的浓度，特征峰强度。

4. 发明授权

US10775310B2 Raman spectrum detection apparatus and method based on power of reflected light and image recognition 有权
公开(公告)号：US10775310B2
公开(公告)日：2020-09-15
申请号：US16232339
申请日：2018-12-26
申请人： NUCTECH COMPANY LIMITED
发明人： Haihui Liu , Hongqiu Wang , Jianhong Zhang
IPC分类号： G01J3/44 , G01N21/65 , G01J3/02 , G01J3/36 , G01J3/10 , G01N21/17
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.

5. 发明授权

US10267678B2 Raman spectroscopic detection method 有权
公开(公告)号：US10267678B2
公开(公告)日：2019-04-23
申请号：US14577748
申请日：2014-12-19
申请人： NUCTECH COMPANY LIMITED
发明人： Ziran Zhao , Jianhong Zhang , Hongqiu Wang , Weiwei Wang , Zhiming Wang , Yumin Yi
IPC分类号： G01N21/00 , G01J3/00 , G01J3/02 , G01J3/44 , G01N21/65 , G01J3/28
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.

6. 发明授权

US10823676B2 Non-contact type security inspection system and method 有权
公开(公告)号：US10823676B2
公开(公告)日：2020-11-03
申请号：US16467037
申请日：2017-11-07
申请人： NUCTECH COMPANY LIMITED
发明人： Ankai Wang , Hongqiu Wang , Yumin Yi , Haihui Liu , Jianhong Zhang
IPC分类号： G01J3/44 , G01N21/65
摘要： The present disclosure relates to a non-contact type security inspection and method, the system including: a laser source for emitting probe light beams which penetrate through a container or a packaging and are irradiated onto an inspected object contained in the container or the packaging; an optical collection device for collecting an exciting light excited by the probe light beams on the inspected object; a spectrum analyzer for analyzing spectral characteristics of the exciting light collected by the optical collection device so as to determine characteristics of the inspected object; and a shielding apparatus for preventing at least part of the exciting light excited by the probe light beams on the container or the packaging from entering an induction area of the optical collection device.

7. 发明申请

US20190219446A1 RAMAN SPECTRUM DETECTION APPARATUS AND METHOD BASED ON IMAGE GRAYSCALE RECOGNITION 审中-公开
公开(公告)号：US20190219446A1
公开(公告)日：2019-07-18
申请号：US16313690
申请日：2018-12-19
申请人： Nuctech Company Limited
发明人： Haihui Liu , Hongqiu Wang , Jianhong Zhang , Jiaqian Zuo
IPC分类号： G01J3/28 , G01N21/65 , G01J3/44
CPC分类号： G01J3/2823 , G01J3/4412 , G01N21/65
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.

8. 发明申请

US20190195804A1 RAMAN SPECTRUM DETECTION APPARATUS AND METHOD BASED ON POWER OF REFLECTED LIGHT 审中-公开
公开(公告)号：US20190195804A1
公开(公告)日：2019-06-27
申请号：US16229589
申请日：2018-12-21
申请人： NUCTECH COMPANY LIMITED
发明人： Haihui LIU , Hongqiu Wang , Jianhong Zhang
IPC分类号： G01N21/65 , G01J3/44 , G01N21/27
CPC分类号： G01N21/658 , G01J3/027 , G01J3/44 , G01J3/4412 , G01J2003/4418 , G01N21/27 , G01N21/65
摘要： A detection apparatus includes: a laser configured to emit laser light towards an object to be detected; a Raman spectrometer configured to receive a Raman light signal from the object; a light sensor configured to receive portions of the laser light reflected and scattered by the object under irradiation of the laser light, and to determine power of the received portions of the laser light; and a controller configured to control an operation of the detection apparatus based on the power determined by the light sensor. Further, there is provided a detection method using the above detection apparatus.

9. 发明授权

US09997266B2 Protective device and laser raman safety inspection apparatus comprising the same 有权
公开(公告)号：US09997266B2
公开(公告)日：2018-06-12
申请号：US15273881
申请日：2016-09-23
申请人： NUCTECH COMPANY LIMITED
发明人： Li Zhang , Shixin Zhang , Lin Yang , Hongqiu Wang , Yumin Yi , Huacheng Feng , Jianhong Zhang
IPC分类号： G21F5/12 , G01N21/65 , G01J3/02 , F16P3/08 , G01J3/44 , G01N21/35
CPC分类号： G21F5/12 , F16P3/08 , G01J3/0291 , G01J3/44 , G01N21/35 , G01N21/65 , G01N2201/0225
摘要： Embodiments of the present invention provide a protective device including a sliding door and a housing, together forming a closed space, wherein, a guide rail is provided on the housing, and the sliding door is slidable along the guide rail to open or close the closed space. In addition, embodiments of the present invention also provide a laser Raman safety inspection apparatus including the abovementioned protective device.

10. 发明申请

US20150185431A1 OPTICAL PROBE 有权
标题翻译：光学探头
公开(公告)号：US20150185431A1
公开(公告)日：2015-07-02
申请号：US14573387
申请日：2014-12-17
申请人： NUCTECH COMPANY LIMITED
发明人： Ziran Zhao , Jianhong Zhang , Hongqiu Wang , Dong Lin , Shixin Zhang , Bin Hu , Yumin Yi
IPC分类号： G02B7/04 , G01N21/01 , G02B7/02 , G01N21/63
CPC分类号： G02B7/04 , G01N21/01 , G01N21/63 , G01N2201/02 , G02B7/022 , G02B7/32
摘要： An embodiment of the present invention provides an optical probe, comprising: a first sleeve in which a lens is contained, the first sleeve having a light transmission aperture from which an exciting light enters the first sleeve; a second sleeve movably engaged with the first sleeve and having a detection window from which the exciting light having passed through the first sleeve and focused by the lens exits the optical probe, the second sleeve being capable of moving with respect to the first sleeve from a first detection position to a second detection position or from the second detection position to the first detection position; and a positioning member configured to position the second sleeve at the first detection position or the second detection position with respect to the first sleeve.
摘要翻译：本发明的一个实施例提供了一种光学探针，包括：第一套筒，其中容纳透镜，第一套筒具有透光孔，激发光从该光透射孔进入第一套筒; 第二套筒可移动地与第一套筒接合并且具有检测窗口，已经穿过第一套筒并被透镜聚焦的激发光从该检测窗口离开光学探针，第二套筒能够相对于第一套筒从一个第一检测位置到第二检测位置或从第二检测位置到第一检测位置; 以及定位构件，其构造成将所述第二套筒相对于所述第一套筒定位在所述第一检测位置或所述第二检测位置。

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