vortex precession flowmeter
vortex precession flowmeter[′vȯr‚teks prē′sesh·ən ′flō‚mēd·ər]
An instrument for measuring gas flows from the rate of precession of vortices generated by a fixed set of radial vanes placed in the flow. Also known as swirl flowmeter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.