ANALYSIS AND HIGH FREQUENCY CORRECTION OF BARMAGNET VELOCITY-METER RESPONSE.

Abstract

The output of the bar-magnet velocity meter, used to measure ship and model structural velocity transients due to the shock of an underwater explosion, is distorted by the electrical and structural characteristics of the meter. This report contains a derivation and analysis of the velocity-meter transfer function by treating the meter distributed mechanical system with Laplace transform techaniques. The output signal distortion due to the high frequency structural resonances of the transducer is discussed. A practical way of compensating for this distortion is developed and demonstrated with an analog computer study. Conclusions drawn on theoretical grounds are then verified by tests on an actual velocity meter. The correction method derived is particularly well suited for use with analog computational procedures. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1966
Accession Number
AD0634699

Entities

People

  • J. D. Gordon

Tags

DTIC Thesaurus Topics

  • Analog Computers
  • Computers
  • Distortion
  • Explosions
  • Frequency
  • Resonance
  • Transducers
  • Transfer Functions
  • Underwater Explosions

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Fluid Dynamics.
  • Systems Analysis and Design