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    Sampling device and gas curtain guide
    81.
    发明授权
    Sampling device and gas curtain guide 有权

    公开(公告)号：US10151671B2

    公开(公告)日：2018-12-11

    申请号：US15238598

    申请日：2016-08-16

    Applicant: Nuctech Company Limited

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

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

    Abstract: A sampling device and a gas curtain guide are disclosed. In one aspect, the sampling device includes a chamber body. The chamber body includes a sample inlet, located at a first end of the chamber body, configured for suction of a sample. The chamber body further includes a sample outlet, located adjacent to a second end opposite to the first end of the chamber body, configured to discharge the sample. The chamber body further includes a gas inflation inlet, in a wall of the chamber body, configured to introduce a swirl gas flow into the chamber body. The chamber body further includes a gas exhaust opening configured to discharge gas so as to, together with the gas inflation inlet, generate a tornado type gas flow in the chamber body, which moves spirally from the first end to the second end of the chamber body.

    METHODS AND APPARATUSES FOR ESTIMATING AN AMBIGUITY OF AN IMAGE
    83.
    发明申请
    METHODS AND APPARATUSES FOR ESTIMATING AN AMBIGUITY OF AN IMAGE 审中-公开

    公开(公告)号：US20180040115A1

    公开(公告)日：2018-02-08

    申请号：US15610930

    申请日：2017-06-01

    Applicant: Nuctech Company Limited

    Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Ziran Zhao ,  Yaohong Liu ,  Jianping Gu ,  Zhiming Wang

    IPC: G06T7/00

    CPC classification number: G06T7/0002 ,  G06T2207/20016 ,  G06T2207/20064 ,  G06T2207/30168

    Abstract: A method and an apparatus for estimating an image fuzziness are provided. The method may comprise: acquiring an image; obtaining a mufti-scale representation of the image by performing a mufti-scale transform on the image; calculating gradients of the image and a normalized histogram of the gradients at each scale based on the multi-scale representation; calculating error vectors between the normalized histogram of gradients at each scale and a normalized original histogram of gradients of the image; performing a weighted summing on the error vectors by using respective weights to obtain a summed result, wherein the weights are determined based on a reciprocal of the sums of squares of the gradients of the image at each scale; estimating the ambiguity of the image based on the summed result.

    Apparatuses and methods for generating distributed x-rays
    86.
    发明授权
    Apparatuses and methods for generating distributed x-rays 有权

    公开(公告)号：US09786465B2

    公开(公告)日：2017-10-10

    申请号：US14136362

    申请日：2013-12-20

    Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

    Inventor： Yuanjing Li ,  Yaohong Liu ,  Jinsheng Liu ,  Huaping Tang ,  Chuanxiang Tang ,  Huaibi Chen ,  Xinshui Yan

    IPC: H01J35/14 ,  H01J35/30

    CPC classification number: H01J35/14 ,  H01J35/16 ,  H01J35/30 ,  H01J2235/16

    Abstract: An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.

    GAS ANALYZING APPARATUS AND SAMPLING DEVICE
    89.
    发明申请
    GAS ANALYZING APPARATUS AND SAMPLING DEVICE 有权
    气体分析装置和采样装置

    公开(公告)号：US20160341695A1

    公开(公告)日：2016-11-24

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

    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.

    Abstract translation: 本发明公开了一种气体分析装置和取样装置。 气体分析装置包括取样装置和离子迁移谱分析装置。 采样装置包括多毛细管柱和温度控制系统。 离子迁移谱分析装置适用于分析由采样装置引入的气体，并且包括用于在样品分子和反应离子之间反应的反应腔，空腔具有用于导入气体的取样开口。 多毛细管柱的出口端通过离子迁移谱分析装置的采样口直接插入到离子迁移谱分析装置的空腔中。

    Corona discharge assembly, ion mobility spectrometer, computer program and computer readable storage medium
    90.
    发明授权
    Corona discharge assembly, ion mobility spectrometer, computer program and computer readable storage medium 有权
    电晕放电组件，离子迁移光谱仪，计算机程序和计算机可读存储介质

    公开(公告)号：US09337626B2

    公开(公告)日：2016-05-10

    申请号：US14577211

    申请日：2014-12-19

    Applicant: Nuctech Company Limited

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

    IPC: H01J19/04 ,  H01T19/00 ,  G01N27/62 ,  H01J49/16

    CPC classification number: H01T19/00 ,  G01N27/622 ,  H01J49/168

    Abstract: The present invention discloses a corona discharge assembly, an ion mobility spectrometer, an computer program and an computer readable storage medium. The corona discharge assembly includes: an ionization discharge chamber, wherein the ionization discharge chamber includes a metal corona cylinder, and the metal corona cylinder is provided with an inlet of a gas to be analyzed and a trumpet-shaped front port which is conductive to forming a gathered electric field; multiple corona pins, in which on-off of a high voltage can be independently controlled, are installed at the center of the metal corona cylinder in an insulating manner. The present invention further discloses an ion mobility spectrometer using the above-mentioned corona discharge assembly. The present invention can be used to prolong the service life of the integral corona discharge assembly; the discharge voltage of the ion source can be reduced and the discharge stability thereof can be improved; in comparison with the suspended installation of a pin-shaped electrode, since the multiple corona pins are fixed on the PCB, during installation, the position of the electrode can be accurate and stable, thus mass manufacture is easier to achieve.

    Abstract translation: 本发明公开了电晕放电组件，离子迁移谱仪，计算机程序和计算机可读存储介质。 电晕放电组件包括：电离放电室，其中电离放电室包括金属电晕圆筒，并且金属电晕圆筒设置有要分析的气体的入口和导电以形成的喇叭形前端口 聚集的电场; 可以独立控制高电压开关的多个电晕针以绝缘方式安装在金属电晕圆筒的中心。 本发明还公开了使用上述电晕放电组件的离子迁移谱仪。 本发明可用于延长整个电晕放电组件的使用寿命; 可以降低离子源的放电电压，提高其放电稳定性; 与销状电极的悬挂安装相比，由于多个电晕针固定在PCB上，所以在安装过程中，电极的位置可以准确稳定，从而更容易实现批量制造。

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