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    RAMAN SPECTROSCOPIC DETECTION METHOD FOR DETECTING SAMPLE IN VESSEL
    1.
    发明申请
    RAMAN SPECTROSCOPIC DETECTION METHOD FOR DETECTING SAMPLE IN VESSEL 有权
    用于检测船舶样品的拉曼光谱检测方法

    公开(公告)号：US20150185154A1

    公开(公告)日：2015-07-02

    申请号：US14576699

    申请日：2014-12-19

    Applicant: Nuctech Company Limited

    Inventor： Zhiqiang CHEN ,  Ziran ZHAO ,  Jianhong ZHANG ,  Hongqiu WANG ,  Yumin YI

    IPC: G01N21/65

    CPC classification number: G01N21/65 ,  G01J3/28 ,  G01J3/44 ,  G01J3/4412 ,  G01N2201/06113 ,  G01N2201/12

    Abstract: An embodiment of the present invention provides a Raman spectroscopic detection method for detecting a sample in a vessel, comprising the steps of: (a) measuring a Raman spectrum of the vessel to obtain a first Raman spectroscopic signal; (b) measuring a Raman spectrum of the sample through the vessel to obtain a second Raman spectroscopic signal; (c) removing an interference caused by the Raman spectrum of the vessel from the second Raman spectroscopic signal on basis of the first Raman spectroscopic signal to obtain a third Raman spectroscopic signal of the sample itself; and (d) identifying the sample on basis of the third Raman spectroscopic signal. By means of the above method, the Raman spectrum of the sample in the vessel may be detected correctly so as to identify the sample to be detected efficiently.

    Abstract translation: 本发明的一个实施方案提供一种用于检测容器中的样品的拉曼光谱检测方法，包括以下步骤：（a）测量容器的拉曼光谱以获得第一拉曼光谱信号; （b）通过容器测量样品的拉曼光谱，以获得第二拉曼光谱信号; （c）基于所述第一拉曼光谱信号从所述第二拉曼光谱信号中除去由所述容器的拉曼光谱引起的干扰，以获得所述样品本身的第三拉曼光谱信号; 和（d）基于第三拉曼光谱信号鉴定样品。 通过上述方法，可以正确地检测容器中的样品的拉曼光谱，以便有效地鉴定要检测的样品。

    RAMAN SPECTROSCOPIC DETECTION METHOD
    2.
    发明申请
    RAMAN SPECTROSCOPIC DETECTION METHOD 审中-公开
    拉曼光谱检测方法

    公开(公告)号：US20150185076A1

    公开(公告)日：2015-07-02

    申请号：US14577748

    申请日：2014-12-19

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Ziran ZHAO ,  Jianhong ZHANG ,  Hongqiu WANG ,  Weiwei WANG ,  Zhiming WANG ,  Yumin YI

    IPC: G01J3/02 ,  G01N21/65

    CPC classification number: G01J3/0297 ,  G01J3/28 ,  G01J3/44 ,  G01J2003/4424 ,  G01N21/65 ,  G01N2201/06113 ,  G01N2201/12

    Abstract: 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.

    Abstract translation: 本发明的实施例提供一种拉曼光谱检查方法，包括以下步骤：连续测量待检测物体的拉曼光谱，以收集多个拉曼光谱信号; 叠加多个拉曼光谱信号以形成叠加信号; 从叠加信号滤除荧光干扰信号; 并且根据已经滤除了荧光干扰信号的重叠信号来识别待检查的对象。 通过上述方法，可以通过从对象的拉曼光谱检查信号中去除由荧光信号引起的干扰来获得所需的拉曼光谱信号。 它可以正确地检查物体的拉曼光谱的特征，以有效地识别物体。

    NON-CONTACT TYPE SECURITY INSPECTION SYSTEM AND METHOD
    7.
    发明申请
    NON-CONTACT TYPE SECURITY INSPECTION SYSTEM AND METHOD 审中-公开

    公开(公告)号：US20190391080A1

    公开(公告)日：2019-12-26

    申请号：US16467037

    申请日：2017-11-07

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Ankai WANG ,  Hongqiu WANG ,  Yumin YI ,  Haihui LIU ,  Jianhong ZHANG

    IPC: G01N21/65

    Abstract: 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

    RAMAN SPECTROSCOPY METHOD OF MEASURING MELAMINE CONTENTS IN DAIRY PRODUCTS HAVING DIFFERENT MATRIXES
    9.
    发明申请
    RAMAN SPECTROSCOPY METHOD OF MEASURING MELAMINE CONTENTS IN DAIRY PRODUCTS HAVING DIFFERENT MATRIXES 有权
    拉曼光谱法测定具有不同基质的奶制品中的麦芽糖含量

    公开(公告)号：US20140320855A1

    公开(公告)日：2014-10-30

    申请号：US14145454

    申请日：2013-12-31

    Applicant: Tsinghua University ,  Nuctech Company Limited

    Inventor： Zhiqiang CHEN ,  Li ZHANG ,  Jianhong ZHANG ,  Hongqiu WANG ,  Ziran ZHAO ,  Jianping GU ,  Zhiming WANG ,  Qingping HUANG ,  Yumin YI

    IPC: G01N21/65

    CPC classification number: G01N21/65

    Abstract: 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.

    Abstract translation: 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）使用奶制品样本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。

    METHOD AND APPARATUS FOR INSPECTING SECURITY OF OBJECT TO BE DETECTED
    10.
    发明申请
    METHOD AND APPARATUS FOR INSPECTING SECURITY OF OBJECT TO BE DETECTED 有权

    公开(公告)号：US20210231568A1

    公开(公告)日：2021-07-29

    申请号：US16313567

    申请日：2018-12-21

    Applicant: NUCTECH COMPANY LIMITED

    Inventor： Jianhong ZHANG ,  Hongqiu WANG ,  Jiaqian ZUO ,  Haihui LIU

    IPC: G01N21/65 ,  G01N21/64

    Abstract: A method and an apparatus for inspecting security of an object to be detected. The method includes: guiding an exciting light to the object, collecting a first optical signal from the object and generating .a first spectrum from the first optical signal; guiding the exciting light to the object again after a certain time interval, collecting a second optical signal from the object and generating a second spectrum from the second optical signal; and comparing the first spectrum with the second spectrum to determine whether or not the object is damaged.

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