Invention Grant
- Patent Title: Electric current measurement apparatus and electric current measurement method
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Application No.: US15029318Application Date: 2014-09-10
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Publication No.: US10557874B2Publication Date: 2020-02-11
- Inventor: Hiroaki Tsujimoto
- Applicant: OSAKA CITY UNIVERSITY
- Applicant Address: JP Osaka-Shi
- Assignee: OSAKA CITY UNIVERISTY
- Current Assignee: OSAKA CITY UNIVERISTY
- Current Assignee Address: JP Osaka-Shi
- Agency: Lex IP Meister, PLLC
- Priority: JP2013-216852 20131017
- International Application: PCT/JP2014/004648 WO 20140910
- International Announcement: WO2015/056397 WO 20150423
- Main IPC: G01R15/20
- IPC: G01R15/20 ; G01R19/00 ; G01R21/08

Abstract:
An electric current measurement apparatus for measuring an electric current flowing in a conducting wire in a circuit to be measured, the electric current measurement apparatus characterized by having a magnetic element to which a drive electric current terminal and a measurement voltage terminal are provided, a holder for fixing a positional relationship of the conducting wire to a magnetic body, an electric current source capable of outputting at least one frequency of alternating electric current across the drive electric current terminal, a voltage meter for measuring a voltage across the measurement voltage terminal, and a low-pass filter provided between the measurement voltage terminal and the voltage meter.
Public/Granted literature
- US20160223595A1 ELECTRIC CURRENT MEASUREMENT APPARATUS AND ELECTRIC CURRENT MEASUREMENT METHOD Public/Granted day:2016-08-04
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