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公开(公告)号：US10338160B2
公开(公告)日：2019-07-02
申请号：US15840650
申请日：2017-12-13
Applicant: Tsinghua University
Inventor： Songling Huang , Wei Zhao , Shen Wang , Lisha Peng , Yu Zhang , Xinjie Yu , Jun Zou , Lin Gui , Fuping Wang
Abstract: A high-precision imaging and detecting device for detecting a small defect of a pipeline by a helical magnetic matrix. The device includes: a helical excitation module including a helical excitation coil; a magnetic matrix detection module, disposed at an inner side of the helical excitation coil and including at least one magnetic sensor group arranged at intervals along an axial direction of the helical excitation coil, group including a plurality of magnetic sensors evenly spaced apart and arranged along a circumferential direction of the helical excitation coil, and the magnetic sensor being configured to detect an induction magnetic field of the pipeline; a signal processing module, connected with the magnetic matrix detection module, and configured to receive, process and output an induction magnetic field signal of the pipeline detected by the magnetic sensor.
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公开(公告)号：US10216088B2
公开(公告)日：2019-02-26
申请号：US15615348
申请日：2017-06-06
Applicant: Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
Inventor： Peng Liu , Wei Zhao , Xiao-Yang Lin , Duan-Liang Zhou , Chun-Hai Zhang , Kai-Li Jiang , Shou-Shan Fan
Abstract: The disclosure relates to a photolithography method based on electronic beam. The method includes: providing an electronic beam; making the electron beam transmit a two dimensional nanomaterial to form a transmission electron beam and a number of diffraction electron beams; shielding the transmission electron beam; and radiating a surface of an object by the plurality of diffraction electron beams. The photolithography method is high efficiency and has low cost.
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公开(公告)号：US10030804B2
公开(公告)日：2018-07-24
申请号：US14759300
申请日：2014-09-16
Applicant: Tsinghua University
Inventor： Songling Huang , Wei Zhao , Shen Wang , Xinjie Yu , Junjie Chen , Zheng Wei
IPC: G01M3/40 , G01N27/82 , F16L11/08 , F16L55/38 , F16L101/30
CPC classification number: F16L55/38 , F16L2101/30 , G01M3/40 , G01N27/82
Abstract: An inner detecting device for subsea oil and gas pipeline includes a support shaft defining a sealed chamber therein; a packer cup coupled to the support shaft; a hinge assembly coupled to the support shaft, swinging with respect to the support shaft in a radial direction and sliding with respect to the support shaft in an axial direction; a magnetic detector connected to the hinge assembly to move with respect to the support shaft in the radial and axial directions, and the magnetic detector tending to move away from the support shaft in the radial direction; a battery pack; an electric recorder electrically connected to the battery pack; and a mileage recorder recording a travel distance of the inner detecting device within the pipeline.
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公开(公告)号：US20150091555A1
公开(公告)日：2015-04-02
申请号：US14262999
申请日：2014-04-28
Applicant: Tsinghua University
Inventor： Songling Huang , Wei Zhao , Shen Wang , Qun Liu
IPC: G01N27/82
CPC classification number: G01N27/82
Abstract: An apparatus for detecting magnetic flux leakage signals is provided. The apparatus includes: M three-axis magnetic field sensors configured to detect a three-dimensional magnetic field intensity in M locations respectively to obtain M three-dimensional magnetic field intensity data, in which M is an integer larger than three; a field programmable gate array configured to receive and process the M three-dimensional magnetic field intensity data respectively; a main control chip configured to receive and pack the processed M three-dimensional magnetic field intensity data; and a data output interface configured to output the packed M three-dimensional magnetic field intensity data.
Abstract translation: 提供一种用于检测漏磁信号的装置。 该装置包括：M个三轴磁场传感器，被配置为分别检测M个位置的三维磁场强度，以获得M个三维磁场强度数据，其中M是大于3的整数; 现场可编程门阵列，被配置为分别接收和处理M个三维磁场强度数据; 主控制芯片，被配置为接收和打包所处理的M个三维磁场强度数据; 以及数据输出接口，被配置为输出打包的M个三维磁场强度数据。
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公开(公告)号：US11214860B2
公开(公告)日：2022-01-04
申请号：US15598278
申请日：2017-05-17
Applicant: Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
Inventor： Jiang-Tao Wang , Wei Zhao , Peng Liu , Yang Wei , Kai-Li Jiang , Shou-Shan Fan
Abstract: A method for making a carbon fiber film includes suspending a carbon nanotube film in a chamber. A negative voltage is applied to the carbon nanotube film. A carbon source gas is supplied into the chamber, wherein the carbon source gas is cracked to form carbon free radicals, and the carbon free radicals are graphitized to form a graphite layer on the carbon nanotube film.
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Patent Agency Ranking
公开(公告)号：US10777378B2
公开(公告)日：2020-09-15
申请号：US16252702
申请日：2019-01-20
Applicant: Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
Inventor： Lin Cong , Wei Zhao , Jin Zhang , Yu-Chien Tsai , Kai-Li Jiang , Shou-Shan Fan
IPC: H01J37/20 , H01J37/285
Abstract: The present invention relates to a transmission electron microscope (TEM) micro-grid and a method for preparing the TEM micro-grid. The TEM micro-grid comprises a porous silicon nitride substrate and a graphene layer located on a surface of the porous silicon nitride substrate. The porous silicon nitride substrate comprises a plurality of through holes. The graphene layer covers the plurality of through holes. The method for preparing the TEM micro-grid provided in the present disclosure uses a carbon nanotube film structure to transfer a graphene layer to a surface of a porous silicon nitride substrate.
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公开(公告)号：US10563325B2
公开(公告)日：2020-02-18
申请号：US15598271
申请日：2017-05-17
Applicant: Tsinghua University , HON HAN PRECISION INDUSTRY CO., LTD.
Inventor： Jiang-Tao Wang , Wei Zhao , Peng Liu , Yang Wei , Kai-Li Jiang , Shou-Shan Fan
IPC: D01F9/127 , C01B32/16 , C01B32/168 , C01B32/205 , C01B32/186 , C01B32/20 , B01J19/08 , B82Y30/00 , B82Y40/00
Abstract: A method for making carbon fiber film includes growing a carbon nanotube array on a surface of a growth substrate. A carbon nanotube film is pulled out from the carbon nanotube array, and pass through a reaction room. A negative voltage is applied to the carbon nanotube film. A carrier gas and a carbon source gas are supplied to the reaction room to form graphite sheets on the carbon nanotube film.
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公开(公告)号：US10319563B2
公开(公告)日：2019-06-11
申请号：US16220340
申请日：2018-12-14
Applicant: Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
Inventor： Peng Liu , Wei Zhao , Xiao-Yang Lin , Duan-Liang Zhou , Chun-Hai Zhang , Kai-Li Jiang , Shou-Shan Fan
IPC: H01J37/00 , H01J37/30 , C01B32/182 , C01G39/06 , H01J37/302 , H01J37/31 , H01J37/315 , H01J37/317 , B82Y20/00 , H01J37/305 , B82Y35/00
Abstract: The disclosure relates to an electronic beam machining system. The system includes a vacuum chamber; an electron gun located in the vacuum chamber and used to emit electron beam; a holder located in the vacuum chamber and used to fix an object; a control computer; and a diffraction unit located in the vacuum chamber; the diffraction unit includes a two-dimensional nanomaterial; the electron beam transmits the two-dimensional nanomaterial to form a transmission electron beam and a plurality of diffraction electron beams; the transmission electron beam and the plurality of diffraction electron beams radiate the object to form a transmission spot and a plurality of diffraction spots.
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公开(公告)号：US10236157B2
公开(公告)日：2019-03-19
申请号：US15615324
申请日：2017-06-06
Applicant: Tsinghua University , HON HAI PRECISION INDUSTRY CO., LTD.
Inventor： Peng Liu , Wei Zhao , Xiao-Yang Lin , Duan-Liang Zhou , Chun-Hai Zhang , Kai-Li Jiang , Shou-Shan Fan
IPC: H01J37/00 , H01J37/30 , C01B32/182 , C01G39/06 , H01J37/302 , B82Y20/00 , H01J37/305 , H01J37/31 , H01J37/315 , H01J37/317 , B82Y35/00
Abstract: The disclosure relates to an electronic beam machining system. The system includes a vacuum chamber; an electron gun located in the vacuum chamber and used to emit electron beam; a holder located in the vacuum chamber and used to fix an object; a control computer; and a diffraction unit located in the vacuum chamber; the diffraction unit includes a two-dimensional nanomaterial; the electron beam transmits the two-dimensional nanomaterial to form a transmission electron beam and a plurality of diffraction electron beams; the transmission electron beam and the plurality of diffraction electron beams radiate the object to form a transmission spot and a plurality of diffraction spots.
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公开(公告)号：US10218176B2
公开(公告)日：2019-02-26
申请号：US15009770
申请日：2016-01-28
Applicant: Tsinghua University , ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID CO., LTD.
Inventor： Qinglai Guo , Hongbin Sun , Boming Zhang , Wenchuan Wu , Huaichang Ge , Mingye Zhang , Yongwang Zhang , Wei Zhao , Guoying Lin
Abstract: A method and a device for controlling a local voltage are provided. The method includes: obtaining a first voltage value of a high-voltage side bus in a local transformer substation; determining a control strategy according to a starting threshold value for a voltage enhancement control, a starting threshold value for an under-voltage load shedding and the first voltage value of the high-voltage side bus; and performing the control strategy to control a charging power of an electric vehicle charging station corresponding to the local transformer substation, so as to control the local voltage of the local transformer substation.
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