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11.发明授权公开(公告)号：US12066587B2
公开(公告)日：2024-08-20
申请号：US17375255
申请日：2021-07-14
发明人： Nannan Zhou , Kangxin Lei , Guoqiang Xue , Wen Chen
IPC分类号： G01V3/08
CPC分类号： G01V3/083 , G01V2003/086
摘要： Disclosed is a method for extracting IP information in a TEM response of a grounded-wire source, comprising the following steps: 1) obtaining subsurface resistivity through inversion of a vertical magnetic field less influenced by an IP effect; 2) obtaining an electric field response not influenced by the IP effect based on forward modeling of the obtained underground electrical structure; 3) removing the influence of the IP effect on an observed response to obtain a pure IP response; and 4) inverting the obtained IP response to obtain IP information of polarizability, a frequency dependence, and a time constant. The method of the present invention provides a new idea for further extracting IP information in a TEM response.
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公开(公告)号：US11387088B2
公开(公告)日：2022-07-12
申请号：US17327377
申请日：2021-05-21
摘要： Disclosed are a target holder assembly of an ion probe and a method for preparing a sample target thereof. Specifically, the target holder assembly includes a body and sheets, a middle part of the body is provided with a sample target hole, and limiting portions are symmetrically arranged at an opening of the sample target hole away from a sample target entry side; and the sheets match the limiting portions in shape and dimension to form recesses on a sample target for receiving the limiting portions.
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13.发明申请公开(公告)号：US20210341638A1
公开(公告)日：2021-11-04
申请号：US17375255
申请日：2021-07-14
发明人： Nannan Zhou , Kangxin Lei , Guoqiang Xue , Wen Chen
IPC分类号： G01V3/08
摘要： Disclosed is a method for extracting IP information in a TEM response of a grounded-wire source, comprising the following steps: 1) obtaining subsurface resistivity through inversion of a vertical magnetic field less influenced by an IP effect; 2) obtaining an electric field response not influenced by the IP effect based on forward modeling of the obtained underground electrical structure; 3) removing the influence of the IP effect on an observed response to obtain a pure IP response; and 4) inverting the obtained IP response to obtain IP information of polarizability, a frequency dependence, and a time constant. The method of the present invention provides a new idea for further extracting IP information in a TEM response.
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公开(公告)号：US10954119B2
公开(公告)日：2021-03-23
申请号：US16997093
申请日：2020-08-19
发明人： Hang Li , Chen Sun , Lianzhong Yu
摘要： A MEMS micromirror includes a mirror surface driving structure which is positioned on a substrate and includes two L-shaped structures in head-to-tail arrangement. Each L-shaped structure includes a second torsion beam, an L-shaped transverse plate and a second comb-shaped structure. The first driving electrode is provided on the substrate at a position under a head end of the L-shaped transverse plate, the head end of the L-shaped transverse plate is rotatable with support of the second torsion beam, and a tail end of the L-shaped transverse plate is connected with the second comb-shaped structure. The micromirror surface layer is disposed above the mirror surface driving structure, the first torsion beam is fixed by the substrate and supports two sides of the micromirror surface layer, and two sides, corresponding to the second comb-shaped structures, of the micromirror surface layer are provided with first comb-shaped structures, respectively.
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公开(公告)号：US10901048B2
公开(公告)日：2021-01-26
申请号：US15909591
申请日：2018-03-01
发明人： Lin Zhao , Aimin Du , Shuquan Sun , Heng Tang , Qiong Li , Xiao Feng , Cuihong Li , Qingyun Di
IPC分类号： G01R33/028 , G01R23/10 , G01V3/40 , G01R33/06 , G01R33/00
摘要： An electronic magnetometer and a method for measuring a magnetic field are provided. A Gunn diode with magnetic shielding and a Gunn diode without magnetic shielding generate different induced high-frequency oscillating currents in various environments. The high-frequency oscillating current of the Gunn diode with magnetic shielding and the high-frequency oscillating current of the Gunn diode without magnetic shielding are processed by circuits and subsequently compared. The difference of frequencies in the two currents is proportional to the magnitude of magnetic field, and the magnitude of magnetic field is obtained.
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公开(公告)号：US10697826B2
公开(公告)日：2020-06-30
申请号：US15910328
申请日：2018-03-02
发明人： Shuquan Sun , Aimin Du , Lin Zhao , Heng Tang , Qiong Li , Xiao Feng , Cuihong Li , Qingyun Di
IPC分类号： G01H11/02 , G01R33/00 , G01R33/04 , G01D5/12 , G01R33/032
摘要： A magnetic field based micro-vibration measurement device and a measuring therefore are provided, which are applied in a micro-vibration measurement technical field. Fluxgate sensors and a control processing circuit are included. Each of the fluxgate sensors is disposed with an excitation coil and an induction coil that are mutually corresponding; the control processing circuit includes: an excitation signal generating module, a frequency-selective amplifying module, a phase-sensitive rectifying module, a smooth filtering module an ambient magnetic field acquisition module, and a vibration data statistics module. Excitation coils generate excitation magnetic field signals according to the excitation signal sent from the excitation signal generating module the induction coils are for generating induced current signals according to the receive excitation magnetic field signal and the ambient magnetic field signal. Induced current signals are calculated to obtain ambient magnetic field data after sequentially undergoing selective amplification, rectification and smooth filtering.
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公开(公告)号：US20180195895A1
公开(公告)日：2018-07-12
申请号：US15910328
申请日：2018-03-02
发明人： SHUQUAN SUN , AIMIN DU , LIN ZHAO , HENG TANG , QIONG LI , XIAO FENG , CUIHONG LI , QINGYUN DI
IPC分类号： G01H11/02 , G01R33/04 , G01D5/12 , G01R33/00 , G01R33/032
CPC分类号： G01H11/02 , G01D5/125 , G01R33/0029 , G01R33/0041 , G01R33/0322 , G01R33/04
摘要： A magnetic field based micro-vibration measurement device and a measuring therefore are provided, which are applied in a micro-vibration measurement technical field. Fluxgate sensors and a control processing circuit are included. Each of the fluxgate sensors is disposed with an excitation coil and an induction coil that are mutually corresponding; the control processing circuit includes: an excitation signal generating module, a frequency-selective amplifying module, a phase-sensitive rectifying module, a smooth filtering module an ambient magnetic field acquisition module, and a vibration data statistics module. Excitation coils generate excitation magnetic field signals according to the excitation signal sent from the excitation signal generating module the induction coils are for generating induced current signals according to the receive excitation magnetic field signal and the ambient magnetic field signal. Induced current signals are calculated to obtain ambient magnetic field data after sequentially undergoing selective amplification, rectification and smooth filtering.
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