Accession Number : ADD004347

Title :   Noise Resistant Zone Penetration Detection System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Kallmann,George T ; Waddell,Theodore P

Report Date : 21 Jun 1977

Pagination or Media Count : 7

Abstract : A system for detecting the existence of a projectile within a penetration zone of a target and providing a score indication for each projectile penetrating that zone. The system utilizes a doppler signal generator, a doppler cycle detector and an intercept detector for indicating penetration. A voltage controlled oscillator in the target area provides signal information for transmission by FM telemetry. The unit for scoring the number of intercepts utilizes an FM telemetry receiver for demodulating the signal information. A hit indicator produces a score indication pulse in a manner which is highly resistant to background noise. A score indication device, controlled by the control pulse, counts the score indications and signifies intercepts by an electromechanical counter, audible signals and/or a light display. (Author)

Descriptors :   *Patents, *Scoring, *Penetration, *Terminal ballistics, Projectiles, Firing tests(Ordnance), Doppler systems

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE