Accession Number:

ADD018408

Title:

Microbubble Positioning and control System.

Descriptive Note:

Patent, Filed 28 Jul 95, patented 25 Mar 97,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1997-03-25

Pagination or Media Count:

11.0

Abstract:

A system for positioning and sizing microbubbles in a liquid such as water. A first source of acoustic energy produces a first acoustic signal in the liquid and a second source of acoustic energy produces a second acoustic signal in the liquid. The first and second sources of acoustic energy are positioned and aligned so they produce a standing wave field in the liquid. The standing wave field creates forces which position microbubbles at the antinodes or nodes of the standing wave held. By selecting a frequency for the acoustic signal and a frequency for the second acoustic signal which are slightly different, the standing wave field can cause the positioned microbubbles to move towards or away from a surface region in contact with the liquid.

Subject Categories:

  • Marine Engineering
  • Acoustic Detection and Detectors
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE