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:
Mar. 11, 2003
Filed:
Jun. 28, 2001
Toshiharu Miyata, Kawasaki, JP;
Masayoshi Okamoto, Kawasaki, JP;
Mitutoyo Corporation, Kawasaki, JP;
Abstract
There is provided an induced current position transducer having an improved signal intensity and durability to gap variations. This can be achieved by preventing harmful diffusion of magnetic fluxes to reduce a loss due to leakage fluxes and forming an efficient closed magnetic path between a magnetic field generator and a magnetic flux sensor. A high permeable substance is disposed in a target magnetic path on members of a read head and a scale. This arrangement can suppress a loss due to leakage fluxes caused from diffusion of magnetic fluxes occurred in the conventional winding structure, improving a signal intensity of a magnetic flux and reducing an affection from an external magnetic flux.