公开(公告)号：US11193860B2

公开(公告)日：2021-12-07

申请号：US16314063

申请日：2018-12-10

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Lili Yan ,  Ge Li ,  Qiufeng Ma

IPC: G01N1/34 ,  G01N1/22 ,  G01N1/44 ,  G01N27/622

Abstract: Embodiments of the present disclosure provide a gas purifying device and an ion migration spectrometer. The gas purifying device includes a first purificant vessel, a second purificant vessel and a valve communicated between the first purificant vessel and the second purificant vessel. The valve is configured to allow a gas flows from the second purificant vessel to the first purificant vessel in a first state and to permit the gas to flow from the first purificant vessel to the second purificant vessel in a second state.

公开(公告)号：US11022581B2

公开(公告)日：2021-06-01

申请号：US16727612

申请日：2019-12-26

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Jianmin Li ,  Yaohong Liu ,  Weiping Zhu ,  Qiufeng Ma ,  Biao Cao ,  Ge Li ,  Wei Wang ,  Lili Yan ,  Guangqin Li

IPC: G01N27/00 ,  G01N27/622 ,  H01J49/04

Abstract: Embodiments of the present disclosure provide an ion mobility spectrometer device. The ion mobility spectrometer device includes: an ion mobility tube, a sampling device, and a sampling and circulating gas path. The sampling device includes a solid sample desorption device and a gas sampling device. The solid sample desorption device is configured to process the solid sample into a first mixed gas containing the solid sample, and the gas sampling device is configured to process the gas sample into a second mixed gas containing the gas sample. The sampling and circulating gas path is configured to transfer the first mixed gas and/or the second mixed gas into the ion mobility tube for detection.

公开(公告)号：US20210118656A1

公开(公告)日：2021-04-22

申请号：US16947998

申请日：2020-08-27

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Qingjun Zhang ,  Zhiqiang Chen ,  Yuanjing Li ,  Jianmin Li ,  Yinong Liu ,  Yaohong Liu ,  Guangqin Li ,  Weiping Zhu ,  Ge Li ,  Qiufeng Ma ,  Biao Cao

IPC: H01J49/00 ,  H01J49/04 ,  G01N27/62

Abstract: Embodiments of the present disclosure provide a real-time calibration device, a real-time calibration method and a detection apparatus. The real-time calibration device is in fluid communication with a sample injection pipeline of the apparatus to be calibrated. The real-time calibration device is configured to release a trace amount of calibration agent molecules during a sample injection of the apparatus to be calibrated, so that the trace amount of calibration agent molecules and a sample entering the apparatus to be calibrated are mixed and together enter the apparatus to be calibrated, and information of the sample and the calibration agent is detected by the apparatus to be calibrated, thereby performing a calibration.

公开(公告)号：US20180188138A1

公开(公告)日：2018-07-05

申请号：US15858829

申请日：2017-12-29

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Ziran Zhao ,  Ge Li ,  Biao Cao ,  Qiufeng Ma ,  Linxia Tan

IPC: G01N1/22

Abstract: A sampling device and an inspection apparatus are disclosed. In one aspect, an example gathering and sampling device includes a cylindrical outer housing and an inner housing disposed within the cylindrical outer housing, a cyclone chamber is formed between the cylindrical outer housing and the inner housing to generate a cyclone by injecting a gas flow into the cyclone chamber. The gathering and sampling device further includes an outer chamber body, and a plurality of gas injection orifices formed in the first inner housing end opening of the inner housing and configured to inject a gas towards a substantial center of a circular region defined by an end face of the first outer housing end opening of the cylindrical outer housing.

公开(公告)号：US11994492B2

公开(公告)日：2024-05-28

申请号：US17806805

申请日：2022-06-14

Applicant: Nuctech Company Limited

Inventor： Yan Wang ,  Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Jianmin Li ,  Yaohong Liu ,  Ge Li ,  Zhongyuan Hao ,  Nei Yang ,  Guangqin Li

IPC: H01J49/42 ,  G01N27/623 ,  H01J49/00 ,  H01J49/06

CPC classification number: G01N27/623 ,  H01J49/0031 ,  H01J49/061 ,  H01J49/424 ,  H01J49/4265

Abstract: The present disclosure provides a gas analysis device and a method for detecting sample gas. The gas analysis device includes: an ion mobility spectrometer including an ion mobility tube, an ion gate, a plurality of electrodes, a suppression grid, and a Faraday plate sequentially disposed in the ion mobility tube, wherein the Faraday plate is configured to receive sample ions discharged from the suppression grid, and the Faraday plate is provided with a through hole; a mass spectrometer; a gate valve disposed between the Faraday plate and an ion inlet of the mass spectrometer; and a controller configured to control an opening or closing of the gate valve to allow the sample ions discharged from the suppression grid to flow into the mass spectrometer through the through hole of the Faraday plate when the gate valve is opened.

公开(公告)号：US20220404312A1

公开(公告)日：2022-12-22

申请号：US17806805

申请日：2022-06-14

Applicant: Nuctech Company Limited

Inventor： Yan Wang ,  Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang CHEN ,  Jianmin Li ,  Yaohong Liu ,  Ge Li ,  Zhongyuan Hao ,  Nei Yang ,  Guangqin Li

IPC: G01N27/623 ,  H01J49/42 ,  H01J49/00 ,  H01J49/06

Abstract: The present disclosure provides a gas analysis device and a method for detecting sample gas. The gas analysis device includes: an ion mobility spectrometer including an ion mobility tube, an ion gate, a plurality of electrodes, a suppression grid, and a Faraday plate sequentially disposed in the ion mobility tube, wherein the Faraday plate is configured to receive sample ions discharged from the suppression grid, and the Faraday plate is provided with a through hole; a mass spectrometer; a gate valve disposed between the Faraday plate and an ion inlet of the mass spectrometer; and a controller configured to control an opening or closing of the gate valve to allow the sample ions discharged from the suppression grid to flow into the mass spectrometer through the through hole of the Faraday plate when the gate valve is opened.

公开(公告)号：US10794923B2

公开(公告)日：2020-10-06

申请号：US15868878

申请日：2018-01-11

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Ziran Zhao ,  Qiufeng Ma ,  Ge Li ,  Biao Cao ,  Qi Mao

IPC: G01N35/04 ,  G01N1/02 ,  G01N35/00 ,  G01N1/00 ,  G01N27/62 ,  G01N1/22 ,  H01J49/04 ,  H01J49/00 ,  G01N33/15 ,  G01N1/24 ,  G01N33/22

Abstract: The present invention discloses a wiping-type sample sampling and feeding device, a card reading apparatus, and a gate machine apparatus. The wiping-type sample sampling and feeding device comprises a thermally desorbing portion for analyzing a substance; a wiping-type sampling portion for wiping the substance on a card or certificate and includes a first wheel, a second wheel and a wiping conveyor belt that travels between the first and second wheels along a first direction; and a card/certificate conveyor portion including a card carrying belt configured to convey a card or certificate along a second direction so that the card or certificate can contact with the wiping conveyor belt during conveyance of the card or certificate, thereby the wiping conveyor belt wipes a surface of the card or certificate, wherein the second direction is substantially perpendicular to the first direction.

公开(公告)号：US10782211B2

公开(公告)日：2020-09-22

申请号：US15858829

申请日：2017-12-29

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Ziran Zhao ,  Ge Li ,  Biao Cao ,  Qiufeng Ma ,  Linxia Tan

IPC: G01N1/22 ,  G01N1/02 ,  G01N1/44 ,  G01N33/00

Abstract: A sampling device and an inspection apparatus are disclosed. In one aspect, an example gathering and sampling device includes a cylindrical outer housing and an inner housing disposed within the cylindrical outer housing, a cyclone chamber is formed between the cylindrical outer housing and the inner housing to generate a cyclone by injecting a gas flow into the cyclone chamber. The gathering and sampling device further includes an outer chamber body, and a plurality of gas injection orifices formed in the first inner housing end opening of the inner housing and configured to inject a gas towards a substantial center of a circular region defined by an end face of the first outer housing end opening of the cylindrical outer housing.

公开(公告)号：US11422070B2

公开(公告)日：2022-08-23

申请号：US16989123

申请日：2020-08-10

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Qingjun Zhang ,  Yuanjing Li ,  Zhiqiang Chen ,  Jianmin Li ,  Shangmin Sun ,  Yaohong Liu ,  Weiping Zhu ,  Qiufeng Ma ,  Ge Li ,  Biao Cao ,  Zheng Liang ,  Ying Li ,  Yu Hu

IPC: G01N1/24 ,  G01N27/622

Abstract: A sampling probe, an automatic sampling device, and a container detection system are provided. The sampling probe includes: a mounting base; a housing mounted on the mounting base, a first accommodation chamber having an opening being defined in the housing, and an exhaust hole in communication with the first accommodation chamber and outside of the housing being formed in the housing; a coupling portion formed on an outer edge of the opening of the first accommodation chamber and formed to be hermetically coupled with an air outlet of a container; and a suction device mounted on the housing and configured to suck gas in the container into the first accommodation chamber through the air outlet. The sampling probe may collect the odor of toxic and harmful gases/hazardous chemicals inside the container at the air outlet of the container, without destroying the overall structure of the container.

公开(公告)号：US11408852B2

公开(公告)日：2022-08-09

申请号：US16621877

申请日：2019-05-08

Applicant: TSINGHUA UNIVERSITY ,  Nuctech Company Limited ,  WUHU JIAHONG NEW MATERIAL CO., LTD.

Inventor： Zhiqiang Chen ,  Chunan Xu ,  Qingjun Zhang ,  Fengfeng Xiong ,  Yuanjing Li ,  Ziran Zhao ,  Yinong Liu ,  Yaohong Liu ,  Ge Li ,  Qiufeng Ma ,  Biao Cao

IPC: G01N1/22 ,  G01N27/622 ,  G01N30/72 ,  G01N30/02

Abstract: A sampling tube bundle includes a tube bundle body and a joint assembly. The tube bundle body includes a gas sampling tube for transmitting sampling gas; a metal woven layer wrapping an outer circumference of the gas sampling tube; a heating pad comprising a heat tracing cable wrapping an outer circumference of the metal woven layer, for heating the sampling gas in the gas sampling tube; a flame resistant tape wound around an outer circumference of the of the heating pad; a plurality of signal transmission lines circumferentially spaced apart from one another are arranged outside the flame resistant tape; and a sheath located outside the signal transmission line. The joint assembly is arranged on an end of the tube bundle body, for connecting to an analysis device or a sampling device.