Electric current measurement apparatus and electric current measurement method
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United States of America
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Feb 11, 2020
Grant Date -
Aug 4, 2016
app pub date -
Sep 10, 2014
filing date -
Sep 10, 2014
priority date (Note) -
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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.
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