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. 18, 2025
Filed:
Jul. 26, 2021
Yokogawa Electric Corporation, Tokyo, JP;
Kazuma Takenaka, Musashino, JP;
Kotaro Ogawa, Musashino, JP;
Minako Terao, Musashino, JP;
Naoki Noguchi, Musashino, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
A current measurement device (to) includes a first sensor (SE) configured to detect a direct current magnetic field and a low-frequency alternating current magnetic field generated by a current (I) flowing through a measurement target conductor (MC), a hollow magnetic shielding member () that includes a cutout portion (CP) into which the measurement target conductor is inserted and in which the first sensor is accommodated, a fixing mechanism () configured to fix the measurement target conductor such that a distance between a center of the measurement target conductor inserted into the cutout portion of the magnetic shielding member and the first sensor is a predetermined reference distance (r), and a first calculator () configured to calculate a current flowing through the measurement target conductor based on a detection result of the first sensor.