Accession Number : ADD000037
Title : Shrapnel Sonar.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Muir,Thomas G
Report Date : 02 Oct 1973
Pagination or Media Count : 4
Abstract : The patent provides a unique hand held device including a rotating transducer generating two high frequency signals which cause a nonlinear liquid to generate a low frequency signal. The signal is then projected thru the liquid medium and a low pass filter in such a way as to direct the low frequency sound signal into animal tissue for the purpose of detecting foreign bodies located therein thru a return echo that is displayed on a cathode ray tube mounted in the device.
Descriptors : *Bioinstrumentation, *Patents, *Acoustic detectors, Ammunition fragments, Hand held
Subject Categories : Biomedical Instrumentation and Bioengineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE