The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2023
Filed:
Jan. 28, 2022
Applicant:
Kazuma Goto, Ishikawa, JP;
Inventor:
Kazuma Goto, Ishikawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 7/14 (2006.01); G01B 7/30 (2006.01); G01R 33/02 (2006.01); G01D 5/12 (2006.01); G01D 5/14 (2006.01); G01D 5/48 (2006.01); G01B 7/00 (2006.01);
U.S. Cl.
CPC ...
G01D 5/12 (2013.01); G01D 5/145 (2013.01); G01D 5/147 (2013.01); G01D 5/485 (2013.01); G01B 7/003 (2013.01); G01B 7/14 (2013.01); G01B 7/30 (2013.01);
Abstract
A magnetic measuring apparatus includes at least one magnetic sensor, a coil, a driving circuit configured to supply a current to the coil, a conductor electrically connecting the coil and the driving circuit, and a computing device which estimates relative positions of the magnetic sensor and the coil based on a magnetic field generated by the current supplied to the coil and detected by the magnetic sensor. The magnetic sensor has a magnetic detection sensitivity in a particular direction, and the particular direction of the magnetic sensor and a current vector of the current flowing through the conductor are parallel.