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