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1. 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。

2. 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。

3. 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。

4. 发明授权

US10036707B2 Gem identification method and apparatus 有权
公开(公告)号：US10036707B2
公开(公告)日：2018-07-31
申请号：US14576752
申请日：2014-12-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Ziran Zhao , Li Zhang , Yingying Geng , Hongqiu Wang , Yumin Yi
IPC分类号： G01N21/65 , G01J3/28 , G01N21/87 , G01J3/44
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.

5. 发明申请

US20140010346A1 METHOD AND DEVICE FOR INSPECTION OF LIQUID ARTICLES 审中-公开
标题翻译：检测液体物品的方法和装置
公开(公告)号：US20140010346A1
公开(公告)日：2014-01-09
申请号：US13946498
申请日：2013-07-19
申请人： Nuctech Company Limited , Tsinghua University
发明人： Zhiqiang Chen , Li Zhang , Xuewu Wang , Haifeng Hu , Hongxin Wu , Yuanjing Li , Yinong Liu , Ziran Zhao , Yuxiang Xing , Hu Tang , Yumin Yi , Jinyu Zhang
IPC分类号： G01N23/10
CPC分类号： G01N23/10 , A61B6/027 , G01N23/046 , G01N2001/022 , G01N2223/419 , G01N2223/423 , G01N2223/637 , G01N2223/639 , G01V5/00
摘要： Disclosed are a method and a device for security-inspection of liquid articles with dual-energy CT imaging. The method comprises the steps of obtaining one or more CT images including physical attributes of liquid article to be inspected by CT scanning and a dual-energy reconstruction method; acquiring the physical attributes of each liquid article from the CT image; and determining whether there are drugs concealed in the inspected liquid article based on the difference between the acquired physical attributes and reference physical attributes of the inspected liquid article. The CT scanning can be implemented by a normal CT scanning technique, or a spiral CT scanning technique. In the normal CT scanning technique, the scan position can be preset, or set by the operator with a DR image, or set by automatic analysis of the DR image.
摘要翻译：公开了一种用于双能CT成像的液体物品的安全检查方法和装置。该方法包括以下步骤：通过CT扫描获得包括待检查的液体物品的物理属性的一个或多个CT图像和双能量重建方法; 从CT图像获取每个液体物品的物理属性; 并且基于被检查的液体制品的所获取的物理属性和参考物理属性之间的差异来确定在被检查的液体制品中是否存在隐藏的药物。 CT扫描可以通过正常的CT扫描技术或螺旋CT扫描技术来实现。在正常的CT扫描技术中，扫描位置可以由操作员预先设置，或者通过DR图像设置，或者通过DR图像的自动分析设置。

6. 发明授权

US09121811B2 Method and device for inspection of liquid articles 有权
标题翻译：液体制品检验方法及装置
公开(公告)号：US09121811B2
公开(公告)日：2015-09-01
申请号：US13946498
申请日：2013-07-19
申请人： Tsinghua University , Nuctech Company Limited
发明人： Zhiqiang Chen , Li Zhang , Xuewu Wang , Haifeng Hu , Hongxin Wu , Yuanjing Li , Yinong Liu , Ziran Zhao , Yuxiang Xing , Hu Tang , Yumin Yi , Jinyu Zhang
IPC分类号： A61B6/00 , G01N23/10 , G01N23/04 , G01V5/00 , G01N1/02 , A61B6/02
CPC分类号： G01N23/10 , A61B6/027 , G01N23/046 , G01N2001/022 , G01N2223/419 , G01N2223/423 , G01N2223/637 , G01N2223/639 , G01V5/00
摘要： Disclosed are a method and a device for security-inspection of liquid articles with dual-energy CT imaging. The method comprises the steps of obtaining one or more CT images including physical attributes of liquid article to be inspected by CT scanning and a dual-energy reconstruction method; acquiring the physical attributes of each liquid article from the CT image; and determining whether there are drugs concealed in the inspected liquid article based on the difference between the acquired physical attributes and reference physical attributes of the inspected liquid article. The CT scanning can be implemented by a normal CT scanning technique, or a spiral CT scanning technique. In the normal CT scanning technique, the scan position can be preset, or set by the operator with a DR image, or set by automatic analysis of the DR image.
摘要翻译：公开了一种用于双能CT成像的液体物品的安全检查方法和装置。该方法包括以下步骤：通过CT扫描获得包括待检查的液体物品的物理属性的一个或多个CT图像和双能量重建方法; 从CT图像获取每个液体物品的物理属性; 并且基于被检查的液体制品的所获取的物理属性和参考物理属性之间的差异来确定在被检查的液体制品中是否存在隐藏的药物。 CT扫描可以通过正常的CT扫描技术或螺旋CT扫描技术来实现。在正常的CT扫描技术中，扫描位置可以由操作员预先设置，或者通过DR图像设置，或者通过DR图像的自动分析设置。

7. 发明授权

US10218140B2 Laser security interlocking device and corresponding method 有权
公开(公告)号：US10218140B2
公开(公告)日：2019-02-26
申请号：US15835308
申请日：2017-12-07
申请人： Nuctech Company Limited
发明人： Huacheng Feng , Yumin Yi , Hongqiu Wang , Rui Fan , Shixin Zhang
IPC分类号： F16P3/08 , H01S3/00 , H01S3/10 , G05B19/05 , G08B13/183
摘要： The disclosed technology provides a laser security interlocking device and a corresponding method. In one aspect, an example laser security interlocking device includes a housing, a laser capable of emitting laser light in the housing and a laser light-emitting interlocking circuit, with the housing including a door capable of being opened or closed. When the door is closed, the housing can define an enclosed space within which the laser is positioned. The laser light-emitting interlocking circuit is configured to control the laser security interlocking device to automatically stop the laser emitting laser light before or while the door is opened.

8. 发明授权

US09442212B2 Methods and devices for inspecting liquid 有权
标题翻译：检查液体的方法和装置
公开(公告)号：US09442212B2
公开(公告)日：2016-09-13
申请号：US14804087
申请日：2015-07-20
申请人： NUCTECH COMPANY LIMITED
发明人： Yumin Yi , Li Zhang , Hongqiu Wang , Huacheng Feng , Jianhong Zhang
IPC分类号： G01J3/44 , G01N11/00 , G01N33/00 , G01N31/00 , G01N21/90 , G01J5/00 , G01J5/02 , G06K9/00 , G01V5/00 , G01N21/65 , G01N23/04 , G01N23/087
CPC分类号： G01V5/0033 , G01N21/65 , G01N23/046 , G01N23/087 , G01N2021/651 , G01N2201/0612 , G01V5/0008
摘要： Methods and devices for inspecting liquid are disclosed. According to the method, it is firstly determined whether the package of the liquid is transparent, semi-transparent, or opaque; in a case that the package of the liquid is transparent or semi-transparent, Raman spectrum analysis is implemented by a Raman spectrum module on the inspected liquid to judge whether the inspected liquid is dangerous or is suspected; and in a case that the package of the inspected liquid is opaque, the inspected liquid are inspected by using an X-ray dual-energy scanning technology to judge whether the inspected liquid is dangerous or is suspected. The above solution has advantages that the inspection speed is high, the material can be recognized, it is suitable for various packing materials with various shapes, the accuracy of the inspection result is high or the like. Therefore, the solution is suitable for security inspection in public places with high security inspection requirements, complicated inspected liquids, high personnel flow rate or the like.
摘要翻译：公开了用于检查液体的方法和装置。根据该方法，首先确定液体的包装是透明的，半透明的还是不透明的; 在液体的包装是透明或半透明的情况下，拉曼光谱分析由检查液体上的拉曼光谱模块进行，以判断被检液体是否是危险的或被怀疑的; 并且在被检查液体的包装不透明的情况下，通过使用X射线双能扫描技术来检查被检查液体，以判断被检查液体是否是危险的或被怀疑的。上述解决方案具有检测速度高，材料可以识别的优点，适用于各种形状的各种包装材料，检验结果准确度高等优点。因此，该解决方案适用于公安场所的安全检查，具有较高的安全检查要求，复杂的检查液体，高人流量等。

9. 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.

10. 发明授权

US09746404B2 Inspection methods and apparatuses for liquids 有权
公开(公告)号：US09746404B2
公开(公告)日：2017-08-29
申请号：US14576660
申请日：2014-12-19
申请人： NUCTECH COMPANY LIMITED
发明人： Hongqiu Wang , Yumin Yi , Huacheng Feng , Rui Fan
IPC分类号： G01N21/00 , G01N5/00 , G01N21/3577 , G01N21/65 , G01G17/04 , G01J3/44
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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