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:
Nov. 06, 2018
Filed:
Mar. 22, 2016
Aichi Steel Corporation, Tokai-shi, JP;
Takeshi Kawano, Tokai, JP;
Hitoshi Aoyama, Tokai, JP;
Michiharu Yamamoto, Tokai, JP;
Hideo Arakawa, Tokai, JP;
AICHI STEEL CORPORATION, Tokai-shi, JP;
Abstract
A magnetic impedance sensor comprises an amorphous wireof a magneto-sensitive material as the magneto-impedance element, a pulse oscillator meansthat alternately reverses and outputs a basic pulse current and a compensating pulse current with polarity opposite to the basic pulse current in predetermined periods, and a signal processing meansthat converts an alternate current voltage generated in response to a magnetic field intensity around the amorphous wire by a magnetic impedance effect of the amorphous wire according to the pulse current into a magnetic signal voltage in response to the magnetic field intensity, and outputs the magnetic signal voltage. Since the amorphous wireis repeatedly reversely magnetized in the u and v circumferential directions, due to compensating the negative pulse current, the magnetic sensor with excellent linear characteristics are obtained.