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. 12, 2025
Filed:
Jun. 08, 2023
Yokogawa Electric Corporation, Musashino, JP;
Yokogawa Test & Measurement Corporation, Hachioji, JP;
Hiroyuki Ishida, Hachioji, JP;
Hiroki Minami, Hachioji, JP;
YOKOGAWA ELECTRIC CORPORATION, Tokyo, JP;
YOKOGAWA TEST & MEASUREMENT CORPORATION, Tokyo, JP;
Abstract
A magnetic detection apparatus includes a core to which magnetism to be detected is applied, an exciter configured to excite the core with an excitation signal, a detector configured to detect induced voltage according to a time change of magnetic flux generated by the core, a wave detector configured to detect a wave from a signal corresponding to the induced voltage by using a detection signal corresponding to the excitation signal and to generate a signal according to the magnetism to be detected, and a signal converter configured to generate and output to the exciter an excitation signal that has a spread spectrum of a signal having an excitation frequency and to generate and output to the wave detector a detection signal that has a spread spectrum of a signal having a detection frequency of twice the excitation frequency.