公开(公告)号：US09983137B2

公开(公告)日：2018-05-29

申请号：US15271297

申请日：2016-09-21

Applicant: NUCTECH COMPANY LIMITED

Inventor： Yanshi Ning ,  Li Zhang ,  Hongqiu Wang ,  Yumin Yi ,  Shixin Zhang

IPC: G01N21/65 ,  G01N33/00

CPC classification number: G01N21/65 ,  G01N33/0057 ,  G01N2021/651 ,  G01N2201/022 ,  G01N2201/0236

Abstract: Embodiments of the present disclosure provide a safety protection device for Raman spectroscopy detection and a Raman spectroscopy detection system including the safety protection device. The safety protection device includes: a detection cavity including a cavity body, the cavity body having an opening end through which a sample to be detected is allowed to be placed into the detection cavity; and a cover configured to cover and engage the opening end so as to form, together with the detection cavity, an explosion proof container defining a space for receiving the sample to be detected, the detection cavity further includes a detection opening formed in the cavity body such that a Raman detection probe is allowed to be inserted into the space through the detection opening so as to detect the sample.

公开(公告)号：US20150185431A1

公开(公告)日：2015-07-02

申请号：US14573387

申请日：2014-12-17

Applicant: NUCTECH COMPANY LIMITED

Inventor： Ziran Zhao ,  Jianhong Zhang ,  Hongqiu Wang ,  Dong Lin ,  Shixin Zhang ,  Bin Hu ,  Yumin Yi

IPC: G02B7/04 ,  G01N21/01 ,  G02B7/02 ,  G01N21/63

CPC classification number: G02B7/04 ,  G01N21/01 ,  G01N21/63 ,  G01N2201/02 ,  G02B7/022 ,  G02B7/32

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140010346A1

公开(公告)日：2014-01-09

申请号：US13946498

申请日：2013-07-19

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： 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: G01N23/10

CPC classification number: G01N23/10 ,  A61B6/027 ,  G01N23/046 ,  G01N2001/022 ,  G01N2223/419 ,  G01N2223/423 ,  G01N2223/637 ,  G01N2223/639 ,  G01V5/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US10571598B2

公开(公告)日：2020-02-25

申请号：US15826530

申请日：2017-11-29

Applicant: Nuctech Company Limited

Inventor： Jianhong Zhang ,  Nei Yang ,  Hongqiu Wang ,  Yumin Yi ,  Hu Tang ,  Guohua Wei

IPC: G01J3/44 ,  G01V5/00 ,  G01N21/65 ,  G01N23/046

Abstract: A security inspection apparatus and a security inspection method are disclosed. In one aspect, an example apparatus includes a CT inspection device and a Raman spectrum inspection device, the CT inspection device includes: a CT scanner scanning an object to be inspected to generate a CT image, an image recognizing device recognizing the CT image to check whether or not the object has a suspected hazardous article, and an object marking device making a predetermined marker on the object which has the suspected hazardous article. The Raman spectrum inspection device includes: a Raman spectrum measuring device extracting a Raman spectrum of the suspected hazardous article in the object, a Raman spectrum comparing device comparing the Raman spectrum of the suspected hazardous article with Raman spectra of known compositions to determine a composition of the suspected hazardous article, and an object marker recognizing device recognizing the predetermined marker on the object.

公开(公告)号：US10260949B2

公开(公告)日：2019-04-16

申请号：US15827209

申请日：2017-11-30

Applicant: Nuctech Company Limited

Inventor： Huacheng Feng ,  Yumin Yi ,  Hongqiu Wang ,  Rui Fan ,  Shixin Zhang

IPC: G01J3/44 ,  G01J5/00 ,  G01N21/65 ,  G08B21/02 ,  G01N21/95 ,  G06T7/00

Abstract: A Raman spectrum-based object inspection apparatus and a Raman spectrum-based object inspection method are disclosed. In one aspect, an example apparatus includes: a laser device configured to emit a laser; an optical guiding device configured to guide the laser to an object to be detected and collect a Raman scattering light from the object. The apparatus includes a spectrum generator configured to receive the Raman scattering light collected by the optical guiding device and generate a Raman spectroscopic signal. The spectrum analyzer is configured to analyze the Raman spectroscopic signal to obtain an inspection result. The apparatus includes a monitoring device configured to monitor a state of the object and control an object inspection operation depending on the state of the object.

公开(公告)号：US20160018557A1

公开(公告)日：2016-01-21

申请号：US14804087

申请日：2015-07-20

Applicant: NUCTECH COMPANY LIMITED

Inventor： Yumin Yi ,  Li Zhang ,  Hongqiu Wang ,  Huacheng Feng ,  Jianhong Zhang

IPC: G01V5/00 ,  G01N23/087 ,  G01N23/04 ,  G01N21/65

CPC classification number: G01V5/0033 ,  G01N21/65 ,  G01N23/046 ,  G01N23/087 ,  G01N2021/651 ,  G01N2201/0612 ,  G01V5/0008

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US10663393B2

公开(公告)日：2020-05-26

申请号：US15858274

申请日：2017-12-29

Applicant: Nuctech Company Limited

Inventor： Haihui Liu ,  Hongqiu Wang ,  Yumin Yi ,  Jianhong Zhang ,  Ankai Wang

IPC: G01N21/25 ,  G01N21/39 ,  G01N21/65 ,  G01N21/47 ,  G01N21/31

Abstract: An embodiment of the present disclosure provides a spectrum inspecting apparatus. The apparatus includes a laser source; a focusing cylindrical lens configured to converge a light beam onto a sample; a light beam collecting device configured to collect a light beam signal, which is excited by the light beam, from the sample, so as to form a strip-shaped light spot; a slit configured to receive the collected light beam and couple it to downstream of a light path; a collimating device; a dispersing device configured to disperse the collected light beam so as to form a plurality of sub-beams having different wavelengths; an imaging device configured to image the sub-beams on the photon detector array respectively, wherein the light beam emitted from the laser source has a rectangular cross-section, the strip-shaped light spot impinges on the slit and its length is smaller than a length of the slit.

公开(公告)号：US20180188158A1

公开(公告)日：2018-07-05

申请号：US15858274

申请日：2017-12-29

Applicant: Nuctech Company Limited

Inventor： Haihui Liu ,  Hongqiu Wang ,  Yumin Yi ,  Jianhong Zhang ,  Ankai Wang

IPC: G01N21/25 ,  G01N21/39

CPC classification number: G01N21/255 ,  G01N21/39 ,  G01N21/4795 ,  G01N21/65 ,  G01N2021/3129 ,  G01N2021/3137 ,  G01N2021/393 ,  G01N2021/399

Abstract: An embodiment of the present disclosure provides a spectrum inspecting apparatus. The apparatus includes a laser source; a focusing cylindrical lens configured to converge a light beam onto a sample; a light beam collecting device configured to collect a light beam signal, which is excited by the light beam, from the sample, so as to form a strip-shaped light spot; a slit configured to receive the collected light beam and couple it to downstream of a light path; a collimating device; a dispersing device configured to disperse the collected light beam so as to form a plurality of sub-beams having different wavelengths; an imaging device configured to image the sub-beams on the photon detector array respectively, wherein the light beam emitted from the laser source has a rectangular cross-section, the strip-shaped light spot impinges on the slit and its length is smaller than a length of the slit.

公开(公告)号：US09465189B2

公开(公告)日：2016-10-11

申请号：US14573387

申请日：2014-12-17

Applicant: NUCTECH COMPANY LIMITED

Inventor： Ziran Zhao ,  Jianhong Zhang ,  Hongqiu Wang ,  Dong Lin ,  Shixin Zhang ,  Bin Hu ,  Yumin Yi

IPC: G02B7/02 ,  G02B7/04 ,  G02B7/32 ,  G01N21/01 ,  G01N21/63

CPC classification number: G02B7/04 ,  G01N21/01 ,  G01N21/63 ,  G01N2201/02 ,  G02B7/022 ,  G02B7/32

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09335270B2

公开(公告)日：2016-05-10

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: G01J3/44 ,  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。