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公开(公告)号：US20230236150A1
公开(公告)日：2023-07-27
申请号：US17999201
申请日：2021-05-14
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Weiping ZHU , Qiufeng MA , Biao CAO , Lili YAN , Ge LI , Nei YANG
IPC分类号： G01N27/622 , G01N30/20
CPC分类号： G01N27/622 , G01N30/20 , G01N2030/025 , G01N2030/201
摘要： A trace detection device including: an ion mobility tube ; a sampling gas path module ; a sample injection gas path module configured to introduce a sample carrier gas containing a sample collected by the sampling gas path module toward the ion mobility tube; and a gas chromatography apparatus capable of pre-separating the sample carrier gas, so as to form a pre-separated sample carrier gas; wherein the sample injection gas path module is further configured to be capable of switching between a first mode and a second mode, in the first mode, the sample injection gas path module introduces the sample carrier gas into the ion mobility tube; and in the second mode, the sample injection gas path module introduces the sample carrier gas into the gas chromatography apparatus to pre-separate the sample carrier gas, and the pre-separated sample carrier gas is introduced into the ion mobility tube.
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公开(公告)号：US20210215582A1
公开(公告)日：2021-07-15
申请号：US16314063
申请日：2018-12-10
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Lili YAN , Ge LI , Qiufeng MA
IPC分类号： G01N1/34 , G01N1/44 , G01N27/622 , G01N1/22
摘要： 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.
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公开(公告)号：US20230236093A1
公开(公告)日：2023-07-27
申请号：US18001249
申请日：2021-06-07
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Jianmin LI , Weiping ZHU , Ge LI , Nei YANG , Biao CAO , Wei WANG , Xiulin NI , Shengxi LIU , Zheng LIANG
CPC分类号： G01N1/2211 , G01N1/24 , G01N30/20 , B25J9/1697 , G01N2030/201 , G01N30/7206
摘要： Provided are an odor sniffing device (11) and a vehicle-mounted security inspection apparatus for a container (1). The odor sniffing device (11) includes a primary sampling front end (116), which has a vent adapter (116-1) having a shape matching with a vent of the ventilator of the container, so that when the primary sampling front end (116) fits with the ventilator, the vent adapter (116-1) and the vent generally cooperate to achieve fluid communication. The vehicle-mounted security inspection apparatus (1) may perform imaging inspection and chemical inspection simultaneously.
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公开(公告)号：US20210141103A1
公开(公告)日：2021-05-13
申请号：US16624753
申请日：2018-05-29
发明人： Qingjun ZHANG , Yuanjing LI , Ziran ZHAO , Lifeng SUN
IPC分类号： G01T1/20
摘要： A backscatter detection module includes: a plate-like light-transmitting carrier, two layers of scintillators and a light sensor. The light-transmitting carrier is made of a material that allows fluorescence photons to pass through, and has two light-transmitting planes opposite to each other and at least one light emergent end surface; the light emergent end surface is located between the two light-transmitting planes; the two layers of scintillators are respectively fixedly attached to the two light-transmitting planes; the light sensor is coupled to the light emergent end surface.
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公开(公告)号：US20200240961A1
公开(公告)日：2020-07-30
申请号：US16714799
申请日：2019-12-16
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Weiping ZHU , Yaohong LIU , Qiufeng MA , Ge LI , Biao CAO , Lili YAN
摘要： The present disclosure discloses a gas chromatograph-ion mobility spectrometry combined equipment, including: a gas chromatograph device for pre-separating a to-be-detected sample to form a pre-separated sample; an ion mobility spectrometry device in fluid communication with an outlet of the gas chromatograph device for detecting the pre-separated sample; and a gas circulating device in fluid communication with a discharged gas interface of the ion mobility spectrometry device for processing a discharged gas from the ion mobility spectrometry device, wherein the gas circulating device is further in gas communication with the gas chromatograph device for conveying a part of the discharged gas to the gas chromatograph device to serve as a carrier gas, which drives the to-be-detected sample to enter the gas chromatograph device. The miniaturization and the portability of the gas chromatograph-ion mobility spectrometry combined equipment are improved.
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公开(公告)号：US20190193017A1
公开(公告)日：2019-06-27
申请号：US16232050
申请日：2018-12-26
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Lili YAN , Ge LI , Qiufeng MA , Nan BAI
CPC分类号： B01D53/0446 , B01D53/025 , B01D53/0438 , B01D2257/80 , B01D2259/40003 , B01D2259/40086 , B01D2259/40096 , G01N27/622 , G01N30/26 , G01N2030/025
摘要： The present disclosure relates to a gas purification apparatus and a trace substance detection device. The gas purification apparatus includes a first purification component, a second purification component and a switching component, wherein the switching component can be switched between a first state and a second state, the first purification component and a component to be purified form a gas purification loop in the first state, and the second purification component can provide a regeneration gas for the first purification component in the second state, so that water vapor and impurities in the first purification component are discharged to outside. In the gas purification apparatus, the filtered air is used as the regeneration gas to prevent secondary pollution in a recycling process of the purificant; furthermore, by means of the state switching function of the switching component, the mutual interference between the two working states of purification and regeneration can be prevented, and all the above advantages can improve the reliability of the recycling of the purificant, thereby optimizing the performance and the service life of the gas purification apparatus.
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公开(公告)号：US20180164194A1
公开(公告)日：2018-06-14
申请号：US15826098
申请日：2017-11-29
发明人： Qingjun ZHANG , Yuanjing LI , Ziran ZHAO , Ge LI , Qiufeng MA
摘要： It is disclosed a scrubbing and sampling device, a card reader apparatus and a gate apparatus. The scrubbing and sampling device includes: a scrubbing and sampling portion including a first wheel and a second wheel, which are respectively capable of rotating around respective rotating axes, and a scrubbing conveyor belt tensioned by the first wheel and the second wheel and driven by rotation of the first wheel and the second wheel, to move between them; and an desorbing portion configured to desorb properties of an sample that is conveyed into the desorbing portion. The scrubbing conveyor belt is configured to move through the desorbing portion such that the desorbing portion desorbs the sample on the scrubbing conveyor belt when the scrubbing conveyor belt enters the desorbing portion.
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公开(公告)号：US20200150086A1
公开(公告)日：2020-05-14
申请号：US16627434
申请日：2019-01-25
发明人： Qingjun ZHANG , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Honghui XIN , Biao CAO , Nan BAI , Wei WANG , Qiufeng MA
摘要： A gas path flow monitoring apparatus for an ion mobility spectrometer includes: an ion migration tube, a sensor group, and monitoring device. The ion migration tube has a drift gas inlet, a carrier gas inlet for a sample gas, and an exhaust outlet. The sensor group comprises a drift gas intake quantity sensor connected to the drift gas inlet, a carrier gas intake quantity sensor connected to the carrier gas inlet, and an exhaust quantity sensor connected to the exhaust outlet. The monitoring device is connected to the sensor group to monitor a drift gas intake quantity sensed by the drift gas intake quantity sensor, a carrier gas intake quantity sensed by the carrier gas intake quantity sensor, and an exhaust quantity sensed by the exhaust quantity sensor.
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9.发明申请公开(公告)号：US20190204270A1
公开(公告)日：2019-07-04
申请号：US16235315
申请日：2018-12-28
发明人： Qingjun ZHANG , Weiping ZHU , Yuanjing LI , Zhiqiang CHEN , Ziran ZHAO , Yinong LIU , Yaohong LIU , Qiufeng MA , Ge LI , Biao CAO , Nan BAI
CPC分类号： G01N27/622 , G01N30/20 , G01N30/6026 , G01N2030/025
摘要： A gas chromatography-ion mobility spectrometry detector and a hyphenated apparatus, the gas chromatography-ion mobility spectrometry detector comprises a gas chromatography mechanism and an ion mobility spectrometry mechanism. The gas chromatography mechanism comprises a chromatographic column and a sample injection port. The ion mobility spectrometry mechanism comprises a mobility tube and a connecting body, while a metal connection plate of the connecting body comprises a chromatographic metal plate, an ion mobility metal plate and a semipermeable membrane; on the ion mobility metal plate there are provided an ion mobility sample and carrier gas inlet, an ion mobility sample chamber and a sample injection port; the chromatography sample chamber and the ion mobility sample chamber are separated by semipermeable membrane.
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公开(公告)号：US20170329039A1
公开(公告)日：2017-11-16
申请号：US15411359
申请日：2017-01-20
发明人： Kejun KANG , Jianping CHENG , Zhiqiang CHEN , Ziran ZHAO , Junli LI , Xuewu WANG , Zhi ZENG , Qingjun ZHANG , Jianping GU , Xi YI , Bicheng LIU , Guangming XU , Yongqiang WANG
IPC分类号： G01V5/00
CPC分类号： G01V5/0075 , G01V5/0016 , G01V5/0091
摘要： The present disclosure relates to a method, a device and a system for inspecting a moving object based on cosmic rays, pertaining to the field of radiation imaging and safety inspection techniques. The method includes: detecting whether a speed of the inspected moving object is within a preset range; recording a motion trajectory of the moving object with a monitoring device; acquiring information about charged particles in the cosmic rays with a position sensitive detector, the information about charged particles including track information of the charged particles; determining the moving object by matching positions of the motion trajectory and the track information; reconstructing the track of the charged particles according to the information about the charged particles; and recognizing the material inside the moving object based on the track reconstruction.
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