Invention Grant
- Patent Title: Method for self-calibrating multiple field sensors having three or more sensing axes and system performing the same
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Application No.: US17102553Application Date: 2020-11-24
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Publication No.: US11442118B2Publication Date: 2022-09-13
- Inventor: Ig Jae Kim , Je Hyeong Hong , Donghoon Kang
- Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
- Applicant Address: KR Seoul
- Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
- Current Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
- Current Assignee Address: KR Seoul
- Agency: Cantor Colburn LLP
- Priority: KR10-2020-0135539 20201019
- Main IPC: G01P21/00
- IPC: G01P21/00 ; G01R33/00 ; G01L25/00 ; G01P15/18 ; G01R33/02

Abstract:
Embodiments relate to a method including obtaining m measured values for each field sensor by measuring with respect to a first sensor group including first type of field sensors and a second sensor group including different second type of field sensors, which are attached to the rigid body, at m time steps; and calibrating a sensor frame of the first type of field sensor and a sensor frame of the second type of field sensor by using a correlation between the first type of field sensor and the second type of field sensor based on measured values of at least some of the m time steps, wherein the multiple field sensors include different field sensors of a magnetic field sensor, an acceleration sensor, and a force sensor, and a system therefor.
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