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公开(公告)号：US12196834B2
公开(公告)日：2025-01-14
申请号：US18018735
申请日：2021-07-30
Inventor： Fan Wang , Yan Zhuo , Sijia Yang , Shunzi Wu
Abstract: A calibration system for magnetometers includes magnetometers configured to measure a magnetic field to be measured; a magnetometer holder fixedly mounted on the magnetometer holder; at least one magnetic field generating device having its position fixed relative to the magnetometers, and used to generate a calibration magnetic field distribution in a space to be measured; and a calculation device configured to calculate the magnitudes of magnetic field vectors at the positions of the magnetometers according to the calibration magnetic field distribution generated by the at least one magnetic field generating device in the space to be measured, receive measured magnitudes of the magnetic field vectors from the magnetometers, and calculate detection gain values of the magnetometers on the basis of the calculated magnitudes of the magnetic field vectors and the measured magnitudes of the magnetic field vector.
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Patent Agency Ranking
公开(公告)号：US20220409328A1
公开(公告)日：2022-12-29
申请号：US17780750
申请日：2020-11-26
Inventor： Fan WANG , Yan ZHUO , Sijia YANG
IPC: A61B90/00
Abstract: A system and a method for spatial positioning of magnetometers. Said system includes: magnetometers, a magnetometer support, first positioning markers, a photogrammetry system, and a controller. The first positioning markers are a non-rotationally-symmetrical pattern. The photogrammetry system includes photographing devices configured to photograph, at at least two of a plurality of photographing sites, first image data of the first positioning markers by means of one or more photographing devices. The controller is configured to receive data of the first image photographed by the photographing devices, calculate spatial positions of the first positioning markers on the basis of pre-obtained system parameters and the first image data, and then calculate spatial positions and spatial orientations of the magnetometers.
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公开(公告)号：US12167941B2
公开(公告)日：2024-12-17
申请号：US17780750
申请日：2020-11-26
Inventor： Fan Wang , Yan Zhuo , Sijia Yang
IPC: A61B90/00
Abstract: A system and a method for spatial positioning of magnetometers. Said system includes: magnetometers, a magnetometer support, first positioning markers, a photogrammetry system, and a controller. The first positioning markers are a non-rotationally-symmetrical pattern. The photogrammetry system includes photographing devices configured to photograph, at at least two of a plurality of photographing sites, first image data of the first positioning markers by means of one or more photographing devices. The controller is configured to receive data of the first image photographed by the photographing devices, calculate spatial positions of the first positioning markers on the basis of pre-obtained system parameters and the first image data, and then calculate spatial positions and spatial orientations of the magnetometers.
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公开(公告)号：US20230221394A1
公开(公告)日：2023-07-13
申请号：US18018735
申请日：2021-07-30
Inventor： Fan WANG , Yan ZHUO , Sijia YANG , Shunzi WU
CPC classification number: G01R35/005 , G01R33/26 , G01R33/0017
Abstract: A calibration system for magnetometers includes magnetometers configured to measure a magnetic field to be measured; a magnetometer holder fixedly mounted on the magnetometer holder; at least one magnetic field generating device having its position fixed relative to the magnetometers, and used to generate a calibration magnetic field distribution in a space to be measured; and a calculation device configured to calculate the magnitudes of magnetic field vectors at the positions of the magnetometers according to the calibration magnetic field distribution generated by the at least one magnetic field generating device in the space to be measured, receive measured magnitudes of the magnetic field vectors from the magnetometers, and calculate detection gain values of the magnetometers on the basis of the calculated magnitudes of the magnetic field vectors and the measured magnitudes of the magnetic field vector.
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公开(公告)号：US20220018910A1
公开(公告)日：2022-01-20
申请号：US17312722
申请日：2019-12-09
Inventor： Fan WANG
IPC: G01R33/032 , G01R33/022
Abstract: Disclosed is a multi-channel atomic magnetic detector (100), including at least one detection assembly, with each detection assembly including a plurality of detection air chambers (130) in the same plane and a light-splitting member (110) for allocating polarized beams from a light source (180) to each detection air chamber (130) in the detection assembly, wherein the plurality of detection air chambers (130) of each detection assembly are arranged in a centrally symmetric manner or an axially symmetric manner relative to the light-splitting member (110). The multi-channel atomic magnetic detector (100) has a high detection density and is beneficial for noise reduction.
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公开(公告)号：US11448712B2
公开(公告)日：2022-09-20
申请号：US17312722
申请日：2019-12-09
Inventor： Fan Wang
IPC: G01R33/32 , G01R33/032 , G01R33/022
Abstract: Disclosed is a multi-channel atomic magnetic detector (100), including at least one detection assembly, with each detection assembly including a plurality of detection air chambers (130) in the same plane and a light-splitting member (110) for allocating polarized beams from a light source (180) to each detection air chamber (130) in the detection assembly, wherein the plurality of detection air chambers (130) of each detection assembly are arranged in a centrally symmetric manner or an axially symmetric manner relative to the light-splitting member (110). The multi-channel atomic magnetic detector (100) has a high detection density and is beneficial for noise reduction.
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