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Title:
CALIBRATION SYSTEM AND METHOD FOR MAGNETOMETERS
Document Type and Number:
WIPO Patent Application WO/2022/022690
Kind Code:
A1
Abstract:
A calibration system for magnetometers (1), comprising: the magnetometers (1), configured to measure a magnetic field to be measured; a magnetometer holder (2), the magnetometers (1) being fixedly mounted on the magnetometer holder (2), so that the spatial positions and orientations of the magnetometers (1) are known; at least one magnetic field generating device (3), having the position fixed relative to the magnetometers (1), and used to generate a calibration magnetic field distribution in a space to be measured; and a calculation device (4), the calculation device (4) being configured to calculate the magnitudes of magnetic field vectors at the positions of the magnetometers (1) according to the calibration magnetic field distribution generated by the at least one magnetic field generating device (3) in the space to be measured, receive measured magnitudes of the magnetic field vectors from the magnetometers (1), and calculate detection gain values of the magnetometers (1) on the basis of the calculated magnitudes of the magnetic field vectors and the measured magnitudes of the magnetic field vector. Also provided are a calibration method for the magnetometers (1), a magnetic detection system and method, and a magnetometer holder (2).

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Inventors:
WANG FAN (CN)
ZHUO YAN (CN)
YANG SIJIA (CN)
WU SHUNZI (CN)
Application Number:
PCT/CN2021/109654
Publication Date:
February 03, 2022
Filing Date:
July 30, 2021
Export Citation:
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Assignee:
COGNITIVE MEDICAL IMAGING LTD (CN)
INST BIOPHYSICS CAS (CN)
International Classes:
G01R35/00; G01R33/00
Foreign References:
CN112834973A2021-05-25
US20180313908A12018-11-01
US20140188422A12014-07-03
US9791536B12017-10-17
CN107861084A2018-03-30
CN106725342A2017-05-31
CN201911190087A2019-11-28
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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