A Sensing System for Dash-Dot

Abstract

A system of dynamic armor for tanks (Dash-Dot) is under investigation. A successful system will sense the presence of an anti-tank round, compute it trajectory, and defeat it by automatically firing defending charges that will destroy the attacking rounds before impact. A sensing system of three optical screens, employing filtered IR sources and photo-conductive detectors (PbS cells) has been devised. Preliminary evaluations of the physical and geometrical detection parameters are discussed. In tests of an experimental screen system, an accuracy of about 3% has been achieved in determining the unknown altitude and velocity of 75 mm shells at velocities up to 2500 fps. Preliminary calculations on the complete geometry of the system are presented as an appendix.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1957
Accession Number
AD0307953

Entities

People

  • H. W. Straub
  • L. Melamed
  • R. R. Ulrich

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Guns
  • Altitude
  • Department Of Defense
  • Detection
  • Detectors
  • Geometry
  • Guns
  • Law
  • Light Sources
  • Munitions
  • Optics
  • Projectile Trajectories
  • Projectiles
  • Small Arms
  • Trajectories
  • United States
  • United States Government

Fields of Study

  • Physics

Readers

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