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John A Scales


Click on the titles below to find US government-authored or -collected reports written by John A Scales

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Generation of Intense Low-Frequency Collimated Sound Beams by Nonlinear Acoustics and Detection by a Millimeter-Wave Vibrometer Oct 2010 8 pages
Authors:  John A Scales; Martin Smith; Brian Zadler; COLORADO SCHOOL OF MINES GOLDEN
The full text of this report is available for sale.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.


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