Invention Application
US20170059667A1 CALIBRATION METHOD FOR MAGNETIC FIELD SENSING DEVICES, CORRESPONDING SYSTEM, APPARATUS AND COMPUTER PROGRAM PRODUCT
审中-公开
磁场感应装置的校准方法，相关系统，装置和计算机程序产品
- Patent Title: CALIBRATION METHOD FOR MAGNETIC FIELD SENSING DEVICES, CORRESPONDING SYSTEM, APPARATUS AND COMPUTER PROGRAM PRODUCT
- Patent Title (中): 磁场感应装置的校准方法，相关系统，装置和计算机程序产品
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Application No.: US15076225Application Date: 2016-03-21
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Publication No.: US20170059667A1Publication Date: 2017-03-02
- Inventor: Rossella Bassoli , Carlo Crippa
- Applicant: STMicroelectronics S.r.l.
- Priority: IT102015000047741 20150901
- Main IPC: G01R33/00
- IPC: G01R33/00
Abstract:
A magnetic field sensor generates signal components corresponding to an uncalibrated representation of a sensed magnetic field in a three-dimensional coordinate system. A reader coupled to the magnetic field sensor determines a center offset based on received signal components, adjusts the received signal components based on the determined center offset, and applies Kalman filtering to the adjusted signal components, generating a set of ellipsoid parameters. The reader generates calibrated signal components based on the determined center offset and the generated set of ellipsoid parameters.
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