Hioki BT3554-51 - Effects Of Eddy Currents

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E󰀨ects of Eddy Currents
11.2 E󰀨ects of Eddy Currents
The AC current generated in the instrument induces eddy currents
in the surrounding metallic plates. This could induce voltage in the
test lead.
Since there is a phase di󰀨erence of 90 degrees from the AC current
(reference signal), the induced voltage cannot be eliminated with
synchronous detection, resulting in measurement errors
The e󰀨ects of eddy currents is a phenomenon unique to ohmmeters
that measure resistance using an AC source. To protect the test
lead from such e󰀨ects, keep metallic parts, including metallic plates,
away from the test lead (branched section).
HIOKI BT3554F961-00HIOKI BT3554F961-00