von Arx current meter

von Arx current meter

[fȯn ′ärks ′kə·rənt ‚mēd·ər]
(engineering)
A type of current-measuring device using electromagnetic induction to determine speed and, in some models, direction of deep-sea currents.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.