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81. 发明授权

US10229336B2 Inspection methods and systems 有权
公开(公告)号：US10229336B2
公开(公告)日：2019-03-12
申请号：US15129389
申请日：2015-12-23
申请人： NUCTECH COMPANY LIMITED
发明人： Zhiqiang Chen , Li Zhang , Ziran Zhao , Yaohong Liu , Duokun Zhang , Jianping Gu , Qiang Li , Jian Zhang
IPC分类号： G01V5/00 , G06K9/32 , G01N23/046
摘要： An inspection method and system for inspecting whether there is any liquor in goods is provided. The method includes: acquiring a radiation image of goods being inspected; processing on the radiation image to obtain an ROI; inspecting on the ROI using a liquor goods inspection model to determine if the ROI of the radiation image contains liquor goods. The above solution performs liquor inspection on scanned images of goods, especially containers, so as to intelligently assist the image inspectors.

82. 发明授权

US11152932B2 Protection circuit, oscillation compensation circuit and power supply circuit in solid state pulse modulator 有权
公开(公告)号：US11152932B2
公开(公告)日：2021-10-19
申请号：US16110355
申请日：2018-08-23
申请人： Nuctech Company Limited
发明人： Yaohong Liu , Ziran Zhao , Jinsheng Liu , Wei Jia , Wei Li , Xinshui Yan
IPC分类号： H03K17/0812 , H03K3/57 , H03K17/081 , H03K17/567 , H03K17/06
摘要： The disclosed technology relates to a gate protection circuit for an Insulated Gate Bipolar Transistor (IGBT), the IGBT being used as a switch device in a solid state pulse modulator based on the MARX generator principle, the gate protection circuit including: a voltage regulator configured to supply a stable voltage to an emitter of the IGBT with respect to the ground for a gate of the IGBT.

83. 发明申请

US20190234904A1 DETECTION APPARATUS AND DETECTION METHOD 审中-公开
公开(公告)号：US20190234904A1
公开(公告)日：2019-08-01
申请号：US16376983
申请日：2019-04-05
申请人： Nuctech Company Limited
发明人： 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分类号： G01N27/62 , H01J49/04 , G01N1/22 , G01N1/02 , G01N1/40
摘要： 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.

84. 发明授权

US10281432B2 Detection apparatus and detection method 有权
公开(公告)号：US10281432B2
公开(公告)日：2019-05-07
申请号：US15280744
申请日：2016-09-29
申请人： Nuctech Company Limited
发明人： 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分类号： H01J49/00 , G01N27/62 , H01J49/04 , G01N1/02 , G01N1/22 , G01N1/40 , G01N30/60 , G01N30/72 , G01N1/42
摘要： 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.

85. 发明授权

US10151671B2 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
申请人： Nuctech Company Limited
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Huishao He , Qiufeng Ma , Ziran Zhao , Yinong Liu , Yaohong Liu , Weiping Zhu , Xiang Zou , Jianping Chang
IPC分类号： G01N1/24 , G01N30/30 , G01N1/22
摘要： 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.

86. 发明申请

US20180040115A1 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
申请人： Nuctech Company Limited
发明人： Zhiqiang Chen , Yuanjing Li , Ziran Zhao , Yaohong Liu , Jianping Gu , Zhiming Wang
IPC分类号： G06T7/00
CPC分类号： G06T7/0002 , G06T2207/20016 , G06T2207/20064 , G06T2207/30168
摘要： 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.

87. 发明申请

US20160341695A1 GAS ANALYZING APPARATUS AND SAMPLING DEVICE 有权
标题翻译：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
申请人： NUCTECH COMPANY LIMITED
发明人： 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分类号： G01N27/62 , G01N30/30 , G01N30/46 , G01N27/64
CPC分类号： G01N27/622 , G01N27/64 , G01N30/30 , G01N30/46 , G01N30/466 , G01N2030/3038
摘要： 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.
摘要翻译：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。

88. 发明授权

US09337626B2 Corona discharge assembly, ion mobility spectrometer, computer program and computer readable storage medium 有权
标题翻译：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
申请人： Nuctech Company Limited
发明人： 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分类号： H01J19/04 , H01T19/00 , G01N27/62 , H01J49/16
CPC分类号： H01T19/00 , G01N27/622 , H01J49/168
摘要： 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.
摘要翻译：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。

89. 发明授权

US09231383B2 Corona discharge assembly, ion mobility spectrometer, computer program and computer readable storage medium 有权
标题翻译：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：US09231383B2
公开(公告)日：2016-01-05
申请号：US14578326
申请日：2014-12-19
申请人： NUCTECH COMPANY LIMITED
发明人： Qingjun Zhang , Yuanjing Li , Zhiqiang Chen , Yanchun Wang , Ziran Zhao , Yinong Liu , Yaohong Liu , Xiang Zou , Qiufeng Ma , Junxiao Wang , Jianping Chang
IPC分类号： H01J49/00 , H01T19/00 , H01J49/16 , G01N27/62
CPC分类号： H01T19/00 , G01N27/622 , H01J49/168
摘要： The present invention discloses a corona discharge assembly, including: 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 an annular piece-shaped port which forms a non-uniform electric field with corona pins and is provided with a circular hole at the middle; a rotating shaft is installed on the cylinder wall of the metal corona cylinder in an insulating manner, the rotating shaft is vertical to the axial line of the metal corona cylinder, and a turntable provided with multiple corona pins at the outer edge is installed at the end part of the rotating shaft the axial line of the metal corona cylinder passes in parallel through the rotation plane of the turntable. The present invention further discloses an ion mobility spectrometer using the above-mentioned corona discharge assembly.
摘要翻译：本发明公开了一种电晕放电组件，包括：离子化放电室，其中电离放电室包括金属电晕圆筒，金属电晕圆筒设有待分析气体的入口和环形片状端口其形成具有电晕针的不均匀电场，并在中间设置有圆形孔; 旋转轴以绝缘方式安装在金属电晕圆筒的气缸壁上，旋转轴垂直于金属电晕圆筒的轴线，并且在外边缘处设置有多个电晕针的转盘安装在旋转轴的端部，金属电晕圆筒的轴线平行通过转台的旋转平面。本发明还公开了使用上述电晕放电组件的离子迁移谱仪。

90. 发明申请

US20150188295A1 CORONA DISCHARGE ASSEMBLY, ION MOBILITY SPECTROMETER, COMPUTER PROGRAM AND COMPUTER READABLE STORAGE MEDIUM 有权
标题翻译： CORONA放电组件，离子移动光谱仪，计算机程序和计算机可读存储介质
公开(公告)号：US20150188295A1
公开(公告)日：2015-07-02
申请号：US14577211
申请日：2014-12-19
申请人： Nuctech Company Limited
发明人： 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分类号： H01T19/00 , H01J49/16 , G01N27/62
CPC分类号： H01T19/00 , G01N27/622 , H01J49/168
摘要： 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.
摘要翻译：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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