Accession Number : ADA302223

Title :   An Electromagnetic Vorticity Meter.

Descriptive Note : Technical rept.,

Corporate Author : WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB

Personal Author(s) : Sanford, Thomas B. ; Carlson, James A. ; Prater, Mark D.

PDF Url : ADA302223

Report Date : NOV 1995

Pagination or Media Count : 144

Abstract : The Electromagnetic Vorticity Meter (EMVM) directly measures small scale vorticity in the ocean using the principles of electromagnetic induction. The scientific motivation for developing the EMVM, the design concept, and the theory of operation are discussed. Complete descriptions are given of the instrument's design, construction, and performance through several evolutions of the sensor, and extensive observations are presented of sensor performance during laboratory and field tests. The tests demonstrate a vorticity noise level of .001/s.

Descriptors :   *VORTICES, *ELECTROMAGNETIC INDUCTION, *FLOWMETERS, OCEAN CURRENTS, DETECTORS, THEORY, FIELD TESTS, INSTRUMENTATION, NOISE.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE