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Title:
MAGNETIC BALL CALIBRATION METHOD AND MAGNETIC BALL CALIBRATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/143170
Kind Code:
A1
Abstract:
A magnetic ball calibration method and a magnetic ball calibration apparatus. The magnetic ball calibration method comprises: a magnetic ball rotating around a first axis and a second axis (S101); acquiring detection data of three-axis magnetic field components at a detection position in a rotation process, and obtaining a calibration position of the magnetic ball according to the detection data (S102); and calibrating the magnetic ball according to the calibration position of the magnetic ball (S103), wherein when the magnetic ball is located at the calibration position, the magnetic polarization direction of the magnetic ball coincides with the second axis, the first axis is perpendicular to the second axis, the three-axis magnetic field components comprise an X-axis magnetic field component, a Y-axis magnetic field component and a Z-axis magnetic field component, the direction of the Z-axis magnetic field component coincides with the direction of the second axis, and the direction of the Y-axis magnetic field component coincides with that of the first axis. By means of the magnetic ball calibration method and the magnetic ball calibration apparatus, a magnetic ball can be calibrated conveniently, quickly and accurately.

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Inventors:
WANG QINGQING (CN)
WANG JUNJIE (CN)
DUAN XIAODONG (US)
Application Number:
PCT/CN2023/072316
Publication Date:
August 03, 2023
Filing Date:
January 16, 2023
Export Citation:
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Assignee:
ANKON MEDICAL TECH SHANGHAI CO LTD (CN)
International Classes:
G01R35/00
Foreign References:
CN114487968A2022-05-13
CN106569150A2017-04-19
CN107405052A2017-11-28
CN113729599A2021-12-03
CN110360925A2019-10-22
CN109620104A2019-04-16
CN111289923A2020-06-16
CN1956675A2007-05-02
US20050160609A12005-07-28
US20180321036A12018-11-08
Attorney, Agent or Firm:
TOWIN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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