公开(公告)号：US09285342B2

公开(公告)日：2016-03-15

申请号：US14525058

申请日：2014-10-27

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Shiping Cao ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Jianping Chang ,  Yan Zheng ,  Yanchun Wang ,  Shaoji Mao

IPC: G01N30/72 ,  H01J49/04 ,  G01N27/62

CPC classification number: G01N27/622 ,  G01N30/7206 ,  H01J49/0422 ,  H01J49/0468

Abstract: An ion mobility spectrometer system is disclosed. In one aspect, the system includes a gas chromatograph, first and second ion mobility spectrometers, and a sample feed device that feeds a sample from the gas chromatograph to the first and second ion mobility spectrometers. The sample feed device includes an inner chamber, first and second sample outlets for outputting the sample from the gas chromatograph to the first and second ion mobility spectrometers, respectively, and a gas inlet for inputting a gas into the sample feed device. The system detects and identifies molecules at improved resolution and enhanced molecule information. The system detects positive and negative ions, interrelates positive-mode and negative-mode spectrums, and separates substances.

Abstract translation: 公开了一种离子迁移谱仪系统。 在一个方面，该系统包括气相色谱仪，第一和第二离子迁移谱仪，以及将样品从气相色谱仪供给到第一和第二离子迁移谱仪的样品进料装置。 样品进料装置包括内室，用于将样品从气相色谱仪分别输出到第一和第二离子迁移谱仪的第一和第二样品出口，以及用于将气体输入到样品进料装置中的气体入口。 该系统以改进的分辨率和增强的分子信息检测和识别分子。 系统检测正离子和负离子，相互作用正模式和负模式光谱，并分离物质。

公开(公告)号：US09263226B2

公开(公告)日：2016-02-16

申请号：US14005605

申请日：2012-12-31

Applicant: Nuctech Company Limited

Inventor： Ziran Zhao ,  Zhiqiang Chen ,  Xilei Luo ,  Fuhua Ding ,  Wanlong Wu ,  Zhimin Zheng

IPC: H01J35/16 ,  H01J35/10 ,  H01J35/12 ,  H05G1/08 ,  G01N23/04 ,  H05G1/02 ,  H05G1/04

CPC classification number: H01J35/16 ,  G01N23/04 ,  H01J35/105 ,  H01J35/106 ,  H01J35/12 ,  H05G1/025 ,  H05G1/04 ,  H05G1/08 ,  H05G1/085

Abstract: Embodiments include an X-ray generator including a radiation device installation housing and an X-ray generator. In various embodiments, the radiation device installation housing comprises a housing body, a flange fixedly provided on an inner wall of the housing body and shaped in circular and a compensation device fixedly or movably connected with the flange in a liquid tight manner; a liquid receiving cavity for receiving an insulating liquid formed between one side of two opposite sides of the compensation device and the inner wall of the housing body as well as the flange; a compensation device moving space formed between another side of the two opposite sides of the compensation device opposed to the inner wall of the housing body and an inner wall of the flange.

Abstract translation: 实施例包括具有辐射装置安装壳体和X射线发生器的X射线发生器。 在各种实施例中，辐射装置安装壳体包括壳体，凸缘，其固定地设置在壳体主体的内壁上并成形为圆形，并且补偿装置以液密方式与凸缘固定或可移动地连接; 用于接收在所述补偿装置的两个相对侧的一侧和所述壳体的内壁之间形成的绝缘液体的液体接收腔以及所述凸缘; 补偿装置移动空间形成在与壳体的内壁相对的补偿装置的两个相对侧的另一侧和凸缘的内壁之间。

公开(公告)号：US09250180B2

公开(公告)日：2016-02-02

申请号：US14495233

申请日：2014-09-24

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Li Zhang ,  Jianhong Zhang ,  Hongqiu Wang ,  Ziran Zhao ,  Yumin Yi ,  Jianping Gu ,  Qingping Huang

IPC: G01J3/44 ,  G01N21/47 ,  G01N33/15 ,  G01N21/65

CPC classification number: G01N21/47 ,  G01J3/44 ,  G01N21/65 ,  G01N21/658 ,  G01N33/15

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20160003967A1

公开(公告)日：2016-01-07

申请号：US14792066

申请日：2015-07-06

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Wanlong Wu ,  Yingkang Jin ,  Le Tang ,  Chengcong Xu ,  Ming Ruan ,  Guangwei Ding

IPC: G01V5/00 ,  G01N23/203

CPC classification number: G01V5/0025 ,  G01N23/203 ,  G01V5/0066

Abstract: The present disclosure provides an X-ray backscattering safety Inspection system, comprising: one or more backscattering inspection subsystem configured to inspect an object to be inspected by emitting X-ray beams towards the object to be inspected and inspecting scattering signals; and a control subsystem configured to adjust a distance between the backscattering inspection subsystem and locations on a side of the object to be inspected where are irradiated by the X-ray beams in real time according to a size of the object to be inspected such that the scattering signals inspected are optimized. The system may be adapted to objects to be inspected with different sizes or shapes while enhancing backscattering signals for imaging.

Abstract translation: 本公开提供一种X射线后向散射安全检查系统，包括：一个或多个后向散射检查子系统，被配置为通过向被检查物体发射X射线束并检查散射信号来检查被检查物体; 以及控制子系统，被配置为根据被检查对象的大小实时地调整后向散射检查子系统与待检查对象侧的位置之间的距离，其中被X射线束照射的位置实时地被调整， 检查的散射信号被优化。 该系统可以适应于具有不同尺寸或形状的待检查对象，同时增强用于成像的后向散射信号。

公开(公告)号：US20150115152A1

公开(公告)日：2015-04-30

申请号：US14525058

申请日：2014-10-27

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Shiping Cao ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Jianpang Chang ,  Yan Zheng ,  Yanchun Wang ,  Shaoji Mao

IPC: G01N27/62 ,  H01J49/04 ,  G01N30/72

CPC classification number: G01N27/622 ,  G01N30/7206 ,  H01J49/0422 ,  H01J49/0468

Abstract: An ion mobility spectrometer system is disclosed. In one aspect, the system includes a gas chromatograph, first and second ion mobility spectrometers, and a sample feed device that feeds a sample from the gas chromatograph to the first and second ion mobility spectrometers. The sample feed device includes an inner chamber, first and second sample outlets for outputting the sample from the gas chromatograph to the first and second ion mobility spectrometers, respectively, and a gas inlet for inputting a gas into the sample feed device. The system detects and identifies molecules at improved resolution and enhanced molecule information. The system detects positive and negative ions, interrelates positive-mode and negative-mode spectrums, and separates substances.

Abstract translation: 公开了一种离子迁移谱仪系统。 在一个方面，该系统包括气相色谱仪，第一和第二离子迁移谱仪，以及将样品从气相色谱仪供给到第一和第二离子迁移谱仪的样品进料装置。 样品进料装置包括内室，用于将样品从气相色谱仪分别输出到第一和第二离子迁移谱仪的第一和第二样品出口，以及用于将气体输入到样品进料装置中的气体入口。 该系统以改进的分辨率和增强的分子信息检测和识别分子。 系统检测正离子和负离子，相互作用正模式和负模式光谱，并分离物质。

公开(公告)号：US08921771B2

公开(公告)日：2014-12-30

申请号：US14005820

申请日：2012-11-29

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Qingjun Zhang ,  Shuqiang Dong ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yan Zheng

IPC: B01D59/44 ,  H01J49/00 ,  H01T19/04 ,  H01J49/26

CPC classification number: H01T19/04 ,  G01N27/622 ,  G01N27/68 ,  H01J27/022 ,  H01J49/168 ,  H01J49/26

Abstract: The present invention provides a corona discharge device, comprising a first electrode including: a first substantially cylindrical inner chamber portion and a second substantially conical inner chamber portion in communication with the first inner chamber portion, wherein the second inner chamber portion has a cross sectional area that gradually enlarges in a direction away from the first inner chamber portion. The present invention also provides an ion mobility spectrometer comprising: an ionization region; and the corona discharge device disposed in the ionization region. With the above construction and structure, the ion mobility spectrometer of the present invention has the advantages that extraction of ions is facilitated and a life time of the corona electrode is lengthened. In addition, the focusing and storing electrode is used to effectively shield interference of a corona discharge pulse, and to push and focus sample ions. A designed voltage control solution is used to achieve mobility differentiating of ions, while a corona pulse is shielded to prevent variation in an ion quantity due to the corona pulse, thereby achieving an effect of stabilizing mobility spectrum lines.

Abstract translation: 本发明提供一种电晕放电装置，包括：第一电极，包括：与第一内室部分连通的第一基本上圆柱形的内室部分和第二基本上圆锥形的内室部分，其中第二内室部分具有横截面积 其在远离第一内室部分的方向上逐渐扩大。 本发明还提供了一种离子迁移谱仪，包括：电离区域; 以及设置在电离区域中的电晕放电装置。 通过上述结构和结构，本发明的离子迁移谱仪具有促进离子提取和电晕电极寿命延长的优点。 此外，聚焦和存储电极用于有效屏蔽电晕放电脉冲的干扰，并推动和聚焦样品离子。 使用设计的电压控制解决方案来实现离子的移动性差异，同时屏蔽电晕脉冲以防止由于电晕脉冲引起的离子量的变化，从而实现稳定迁移率谱线的效果。

公开(公告)号：US20140341431A1

公开(公告)日：2014-11-20

申请号：US14365090

申请日：2012-11-27

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Zhiqiang Chen ,  Ziran Zhao ,  Wanlong Wu ,  Zhimin Zheng ,  Zongjun Shen ,  Xilei Luo ,  Shuo Cao ,  Yingkang Jin ,  Bin Sang

IPC: G01V8/00 ,  G06K9/62 ,  G06K9/20

CPC classification number: G01V8/005 ,  G06K9/209 ,  G06K9/6201

Abstract: The present invention discloses a through-type of millimetre wave person body security inspection system, wherein a person to be inspected passes through an inspect passage therein for performing a security inspection. The through-type of millimetre wave person body security inspection system provided in accordance with the present invention can make a total body dynamic scanning to the person to be inspected, and obtain millimetre wave images and optical images with respect to the person body, thereby achieving the inspection of prohibited articles hidden within clothing of the person body and an automatic alarm thereof.

Abstract translation: 本发明公开了一种毫米波人身安全检查系统，其中被检人通过其中的检查通道进行安全检查。 根据本发明提供的毫米波人身安全检查系统的直通型可以对被检查人员进行全身动态扫描，并获得相对于人体的毫米波图像和光学图像，从而实现 检查隐藏在人身衣服内的被禁止物品及其自动报警。

公开(公告)号：US08891081B1

公开(公告)日：2014-11-18

申请号：US14145454

申请日：2013-12-31

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Li Zhang ,  Jianhong Zhang ,  Hongqui Wang ,  Ziran Zhao ,  Jianping Gu ,  Zhiming Wang ,  Qingping Huang ,  Yumin Yi

IPC: G01J3/44 ,  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。

公开(公告)号：US20140314201A1

公开(公告)日：2014-10-23

申请号：US14129669

申请日：2012-12-28

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Shuwei LI ,  Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Qingjun Zhang ,  Weibin Zhu ,  Yi Wang ,  Shuqing Zhao ,  Wenjian Zhang

IPC: G01N23/087 ,  G01T1/22

CPC classification number: G01N23/087 ,  G01N2223/402 ,  G01N2223/507 ,  G01T1/22

Abstract: Methods and apparatuses for measuring an effective atomic number of an object are disclosed. The apparatus includes: a ray source configured to product a first X-ray beam having a first energy and a second X-ray beam having a second energy; a Cherenkov detector configured to receive the first X-ray beam and the second X-ray beam that pass through an object under detection, and to generate a first detection value and a second detection value; and a data processing device configured to obtain an effective atomic number of the object based on the first detection value and the second detection value. The Cherenkov detector can eliminate disturbance of X-rays below certain energy threshold with respect to the object identification, and thus accuracy can be improved for object identification.

Abstract translation: 公开了用于测量物体的有效原子序数的方法和装置。 该装置包括：射线源，被配置为产生具有第一能量的第一X射线束和具有第二能量的第二X射线束; 切伦科夫检测器，被配置为接收通过检测对象的第一X射线束和第二X射线束，并产生第一检测值和第二检测值; 以及数据处理装置，被配置为基于所述第一检测值和所述第二检测值来获得所述对象的有效原子序数。 切恩科夫检测器可以消除相对于物体识别的某些能量阈值以下的X射线干扰，从而可以提高对象识别的精度。

公开(公告)号：US20140185923A1

公开(公告)日：2014-07-03

申请号：US14136462

申请日：2013-12-20

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Zhiqiang Chen ,  Li Zhang ,  Ziran Zhao ,  Qingping Huang ,  Qiang Li ,  Jianping Gu ,  Yunda Sun

IPC: G06K9/00

CPC classification number: G06T7/596 ,  G06K9/00201 ,  G06K9/00523 ,  G06K9/00536 ,  G06K9/6215 ,  G06K9/627 ,  G06K2209/09 ,  G06T7/0004 ,  G06T7/68 ,  G06T11/008 ,  G06T2207/10081 ,  G06T2207/30112 ,  G06T2211/408

Abstract: Methods for extracting a shape feature of an object and security inspection methods and apparatuses. Use is made of CT's capability of obtaining a 3D structure. The shape of an object in an inspected luggage is used as a feature of a suspicious object in combination with a material property of the object. For example, a false alarm rate in detection of suspicious explosives may be reduced.

Abstract translation: 用于提取对象的形状特征的方法和安全检查方法和装置。 使用CT可以获得3D结构。 检查行李中的物体的形状被用作可疑物体的特征，与物体的材料属性相结合。 例如，可能会减少检测可疑炸药的误报率。