Accession Number:

ADA533326

Title:

Generation of Intense Low-Frequency Collimated Sound Beams by Nonlinear Acoustics and Detection by a Millimeter-Wave Vibrometer

Descriptive Note:

Final rept. 1 Aug 2007-31 Oct 2009

Corporate Author:

COLORADO SCHOOL OF MINES GOLDEN

Report Date:

2010-10-01

Pagination or Media Count:

8.0

Abstract:

In this work, we designed, developed and tested nonlinear ultrasonic arrays for the purpose of generating an intense, collimated beam of sound to be directed at targets such as buried landmines. In order to make a completely noncontacting system, with insonification via the nonlinear array, we also developed a sensitive millimeter wave vibrometer to detect the resulting ground motion.

Subject Categories:

  • Machinery and Tools
  • Acoustics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE