centrifugal tachometer
centrifugal tachometer
[‚sen′trif·i·gəl tə′käm·əd·ər] (mechanical engineering)
An instrument which measures the instantaneous angular speed of a shaft by measuring the centrifugal force on a mass rotating with it.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.