parametric acoustic array

parametric acoustic array

[¦par·ə¦me·trik ə′küs·tik ə′rā]

(acoustics)

A device for generating very sharp beams of sound devoid of side lobes, consisting of a source of well-collimated high-frequency sound modulated at the frequency of the sound which is to be generated.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.