Coil Voltage Sensing Circuitry for Speed Measurements

Abstract

A device for sensing projectile velocity in an underwater environment is provided. The device includes a plurality of evenly spaced voltage coil members positioned in the path of a projectile. Each voltage coil member includes a support frame having an opening therein and a magnetic coil mounted on the support frame, and a sensing member connected to each support frame. The sensing member includes means rot outputting a signal responsive to passage of the projective through the voltage coil member, and a logic arrangement for determining a difference between passage or the projectile between adjacent ones of said plurality of voltage coil members throughout the run thereof, thereby determining a velocity of the projectile.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 28, 2000
Accession Number
ADD019798

Entities

People

  • Daniel P. Thivierge
  • John R. Raposa

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Attorneys
  • Circuits
  • Data Acquisition
  • Environment
  • Frequency
  • Gun Muzzles
  • Guns
  • Inventions
  • Logic Devices
  • Magnetic Materials
  • Measurement
  • Munitions
  • Patents
  • Projectiles
  • Radio Frequency
  • Underwater Projectiles

Fields of Study

  • Physics

Readers

  • Aerospace Research.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Hall-Effect Thruster
  • Space - Satellites
  • Space - Spacecraft Maneuvers