differential voltmeter


Also found in: Acronyms.

differential voltmeter

[‚dif·ə′ren·chəl ′vōlt‚mēd·ər]
(electricity)
A voltmeter that measures only the difference between a known voltage and an unknown voltage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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