公开(公告)号：US10520402B2

公开(公告)日：2019-12-31

申请号：US16232062

申请日：2018-12-26

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Ge Li ,  Biao Cao ,  Jingli Xie ,  Xiaolin Zhao ,  Qiufeng Ma

IPC: G01N1/24 ,  G01N1/22 ,  G01N1/40 ,  G01N30/30

Abstract: The present disclosure relates to the technical field of safety detection, and in particular to a sample collecting and introducing device and a detection system. The sample collecting and introducing device provided by the present disclosure includes a sampling device for collecting a sample, and a semipermeable membrane device for extracting the sample collected by the sampling device and conveying the extracted sample to detection equipment, wherein the sampling device is provided with an air guide cavity, the air guide cavity is configured to guide airflow carrying the sample to flow to the semipermeable membrane device, the semipermeable membrane device is provided with a semipermeable membrane which is arranged outside the sampling device. In the present disclosure, the size of the semipermeable membrane is no longer limited by the sampling device, and therefore the difficulty of increasing the area of the semipermeable membrane is reduced.

公开(公告)号：US10429348B2

公开(公告)日：2019-10-01

申请号：US16376986

申请日：2019-04-05

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Huishao He ,  Qiufeng Ma ,  Weiping Zhu ,  Xiang Zou ,  Jianping Chang ,  Song Liang

IPC: H01J49/00 ,  G01N27/62 ,  H01J49/04 ,  G01N1/22 ,  G01N1/02 ,  G01N1/40 ,  G01N1/42 ,  G01N30/60 ,  G01N30/72

Abstract: A detection apparatus and a detection method are disclosed. In one aspect, the detection apparatus includes a sampling device for collecting samples to be checked. It further includes a sample pre-processing device configured to pre-process the sample from the sampling device. It further includes a sample analyzing device for separating samples from the pre-processing device and for analyzing the separated samples. The detection apparatus is miniaturized and highly precise, and is capable of quickly and accurately detecting gaseous phase or particulate substances, and it has applications for safety inspections at airports, ports, and subway stations.

公开(公告)号：US09910184B2

公开(公告)日：2018-03-06

申请号：US14965978

申请日：2015-12-11

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Jianmin Li ,  Yulan Li ,  Yuanjing Li ,  Hao Yu ,  Chunguang Zong ,  Jingyu Gu ,  Weifeng Yu ,  Quanwei Song ,  Weizhen Wang ,  Shangmin Sun ,  Yinong Liu ,  Junli Li ,  Chuanxiang Tang

IPC: G01V5/00 ,  G01N23/04 ,  G21K1/02

CPC classification number: G01V5/0016 ,  G01V5/0008 ,  G21K1/02

Abstract: The present disclosure discloses an alignment system and an alignment method for a container or vehicle inspection system, and an inspection system. The inspection system comprises comprising an ray source, a collimator, a detector arm and a detector module mounted on a detector arm, the ray source, the collimator and the detector module are arranged to form an inspection passage, a ray beam emitted from the ray source passes through collimator and irradiates onto an inspected object, and an attenuated ray beam is collected by the detector module so as to complete inspection. The alignment system comprises a measuring module arranged to receive the ray beam emitted from the collimator and to measure the ray beam so as to determine positions and orientations of the ray source and the collimator. With the alignment method, alignment between a center point of the ray source, a central line of a detector tip and a central line of the collimator may be more accurately measured.

公开(公告)号：US09772306B2

公开(公告)日：2017-09-26

申请号：US15115217

申请日：2015-12-24

Applicant: NUCTECH COMPANY LIMITED

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Qiufeng Ma ,  Huishao He ,  Weiping Zhu ,  Xiang Zou ,  Jianping Chang ,  Song Liang

IPC: G01N27/00 ,  G01N27/62 ,  G01N27/64 ,  G01N30/30 ,  G01N30/46

CPC classification number: G01N27/622 ,  G01N27/64 ,  G01N30/30 ,  G01N30/46 ,  G01N30/466 ,  G01N2030/3038

Abstract: The present invention discloses a gas analyzing apparatus and a sampling device. The gas analyzing apparatus includes a sampling device and an ion mobility spectrum analysis device. The sampling device includes a multi-capillary column and a temperature control system. The ion mobility spectrum analysis device is adapted for analyzing a gas leaded-in by the sampling device and includes a reaction cavity for reaction between sample molecules and reaction ions, the cavity having a sampling opening for leading-in of the gas. An outlet end of the multi-capillary column is inserted directly into the cavity of the ion mobility spectrum analysis device through the sampling opening of the ion mobility spectrum analysis device.

公开(公告)号：US09766354B2

公开(公告)日：2017-09-19

申请号：US14152332

申请日：2014-01-10

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Yuanjing Li ,  Lan Zhang ,  Yulan Li ,  Yinong Liu ,  Jianqiang Fu ,  Hao Jiang ,  Zhi Deng ,  Tao Xue ,  Wei Zhang ,  Jun Li

IPC: G01T3/08 ,  G01T1/36 ,  G01T1/24

CPC classification number: G01T1/366 ,  G01T1/241 ,  G01T3/08

Abstract: The invention provides a semiconductor detector, and the semiconductor detector comprises a semiconductor crystal, a cathode, an anode and at least one ladder electrode; the semiconductor crystal comprises a top surface, a bottom surface and at least one side; the cathode, the anode and the ladder electrode are conductive thin films deposited on a surface of the semiconductor crystal; the cathode is disposed on the bottom surface of the semiconductor crystal, the anode is disposed on the top surface of the semiconductor crystal, the ladder electrode is disposed on the at least one side of the semiconductor crystal; and the ladder electrode comprises a plurality of sub-electrodes. As compared to the prior art, the semiconductor detector can improve the energy resolution.

公开(公告)号：US09513266B2

公开(公告)日：2016-12-06

申请号：US14577653

申请日：2014-12-19

Applicant: Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Qiufeng Ma ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Xiang Zou ,  Yanchun Wang ,  Junxiao Wang ,  Jianping Chang

IPC: H01J49/00 ,  G01N30/72 ,  G01N27/62 ,  G01N27/64 ,  H01J49/04

CPC classification number: G01N30/7206 ,  G01N27/622 ,  G01N27/64 ,  H01J49/0422

Abstract: A GC-IMS system is disclosed. The system includes a sample transfer device. The sample transfer device connects the gas chromatograph to the reaction region and, the sample from the gas chromatograph is transferred to the reaction region by the sample transfer device. With the GC-IMS system, generation of sample molecular ion fragments can be avoided so that the spectrum is easily identified; moreover, the application field of the GC-IMS system is extended to a range of analysis of organic macromolecule samples which have a high polarity, are difficult to volatilize, and are thermally instable. On the other hand, the GC-IMS system overcomes the defect of ion destruction due to neutralization reaction among positive and negative ions so as to evade the detection.

Abstract translation: 公开了一种GC-IMS系统。 该系统包括样品转移装置。 样品转移装置将气相色谱仪连接到反应区域，样品转移装置将样品从气相色谱仪转移到反应区域。 使用GC-IMS系统，可以避免样品分子离子片段的产生，从而可以容易地鉴定光谱; 此外，GC-IMS系统的应用领域扩展到具有高极性，难以挥发和热不稳定的有机大分子样品的分析范围。 另一方面，GC-IMS系统克服了由于正离子和负离子之间的中和反应引起的离子破坏的缺陷，以避免检测。

公开(公告)号：US09417356B2

公开(公告)日：2016-08-16

申请号：US14247837

申请日：2014-04-08

Applicant: Nuctech Company Limited

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Wanlong Wu ,  Xilei Luo ,  Yinong Liu ,  Li Zhang ,  Bin Sang ,  Zongjun Shen ,  Yingkang Jin ,  Zhimin Zheng

IPC: G01V8/20 ,  G01V8/26 ,  G01V8/00 ,  G01N22/00

CPC classification number: G01V8/20 ,  G01N22/00 ,  G01V8/005 ,  G01V8/26

Abstract: The present invention discloses a millimeter wave holographic scan imaging apparatus for inspecting a human body. The apparatus includes a first millimeter wave transceiver device (40) comprising a first millimeter wave transceiver antenna array (41) for transmitting and receiving a first millimeter wave signal; a second millimeter wave transceiver device (40′), which comprises a second millimeter wave transceiver antenna array (41′) for transmitting and receiving a second millimeter wave signal, and is configured in opposite direction with relation to the first millimeter wave transceiver device; a connection member (26, 27) for connecting the first millimeter wave transceiver device (40) to the second millimeter wave transceiver device (40′); and a drive device (50), which drives one of the first and the second millimeter wave transceiver devices such that the first millimeter wave transceiver device (40) and the second millimeter wave transceiver device (40′) move in opposite directions.

Abstract translation: 本发明公开了一种用于检查人体的毫米波全息扫描成像装置。 该装置包括第一毫米波收发器装置（40），其包括用于发送和接收第一毫米波信号的第一毫米波收发器天线阵列（41） 第二毫米波收发器装置（40'），其包括用于发送和接收第二毫米波信号的第二毫米波收发器天线阵列（41'），并且被配置为与所述第一毫米波收发器装置相反的方向; 连接构件（26,27），用于将第一毫米波收发器装置（40）连接到第二毫米波收发器装置（40'）; 以及驱动装置（50），其驱动所述第一和第二毫米波收发器装置之一，使得所述第一毫米波收发器装置（40）和所述第二毫米波收发器装置（40'）沿相反方向移动。

公开(公告)号：US20160046861A1

公开(公告)日：2016-02-18

申请号：US14827258

申请日：2015-08-14

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Yanchun WANG ,  Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Jianping Chang ,  Shuqing Zhao ,  Wenjian Zhang ,  Yongqiang Wang

IPC: C09K11/77 ,  C04B40/00 ,  C04B35/645

CPC classification number: C09K11/7772 ,  C04B35/5156 ,  C04B35/547 ,  C04B35/6261 ,  C04B35/64 ,  C04B35/645 ,  C04B35/6455 ,  C04B40/0007 ,  C04B2235/3203 ,  C04B2235/3224 ,  C04B2235/3229 ,  C04B2235/3287 ,  C04B2235/445 ,  C04B2235/5436 ,  C04B2235/5481 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/662 ,  C04B2235/666 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/9653

Abstract: The present disclosure is directed to a rapid process for the preparation of gadolinium oxysulfide having a general formula of Gd2O2S, referred to as GOS, scintillation ceramics by using the combination of spark plasma primary sintering (SPS) and hot isostatic pressing secondary sintering.

Abstract translation: 本公开涉及通过使用火花等离子体一次烧结（SPS）和热等静压二次烧结的组合制备具有通式Gd 2 O 2 S（称为GOS）闪烁陶瓷的通式Gd 2 O 2 S的快速方法。

公开(公告)号：US20150048964A1

公开(公告)日：2015-02-19

申请号：US14451260

申请日：2014-08-04

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Wanlong Wu ,  Zongjun Shen ,  Yinong Liu ,  Li Zhang ,  Xianli Ding

IPC: G01S13/89 ,  G01S13/88

CPC classification number: G01S13/89 ,  G01S13/426 ,  G01S13/887 ,  H01Q1/1242 ,  H01Q3/22

Abstract: A millimeter wave three dimensional holographic scan imaging apparatus and a method for inspecting an object to be inspected using the same are disclosed. The apparatus includes a millimeter wave transceiver module with a millimeter wave transceiver antenna array for transmitting and receiving a millimeter wave signal. The apparatus also includes a guide rail device, to which the millimeter wave transceiver module is connected in slidable form. The millimeter wave transceiver module is moveable along the guide rail device to perform a plane scan on an object to be inspected. A data processing device generates a millimeter wave holographic image from the plane scan.

Abstract translation: 公开了一种毫米波三维全息扫描成像装置和使用其进行检查的被检查物体的方法。 该装置包括具有用于发射和接收毫米波信号的毫米波收发器天线阵列的毫米波收发器模块。 该装置还包括导轨装置，毫米波收发器模块以可滑动的形式连接到该导轨装置。 毫米波收发器模块可沿着导轨装置移动，以对被检查对象执行平面扫描。 数据处理装置从平面扫描生成毫米波全息图像。

公开(公告)号：US10663429B2

公开(公告)日：2020-05-26

申请号：US16235340

申请日：2018-12-28

Applicant: Nuctech Company Limited ,  TSINGHUA UNIVERSITY

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Ge Li ,  Jingli Xie ,  Qiufeng Ma ,  Biao Cao

IPC: H01J49/00 ,  G01N27/62 ,  G01N1/22 ,  G01N1/24

Abstract: The present disclosure provides a device for collecting semi-volatile or non-volatile substance, including an air nozzle, a front cavity and a collecting body. The air nozzle is configured to eject air to a sample attachment surface. The front cavity has an upper port. The collecting body is sealingly connected to a lower end of the front cavity, inside of which is provided with a cylindrical cavity and a conical cavity arranged vertically coaxially, and bottom of which is provided with a sample outlet. The collecting body is provided with an air intake passage which is non-coplanar with respect to an axis of the cylindrical cavity and is disposed obliquely downward and inward. The collecting body is further provided with an air exhaust passage one end of which is a discharge port connected to the interior of the cylindrical cavity, the other end is connected to an air pump.