Thermophysical Behavior of Armature Materials During a Pulsed Electrical Discharge

Abstract

A technique is developed to measure the surface temperature of an electrical conductor during a pulsed electrical discharge. The technique of two-color interferometry (radiometry) is used to make the temperature measurements. This report explains the technique and the issues encountered in performing such measurements. Also, a theoretical model for the current and heat transport for the pulsed conductor is developed. Predicted and experimental results are compared. The measurements can yield isothermal data that can be used to corroborate calculated current distributions in solid armature railgun operation.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1999
Accession Number
ADA362542

Entities

People

  • A. E. Zielinski
  • J. D. Powell
  • S. Niles

Organizations

  • University of Texas at Austin

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Armatures
  • Computer Programs
  • Current Density
  • Detectors
  • Energy
  • Frequency
  • Magnetic Fields
  • Magnetic Induction
  • Materials
  • Measurement
  • Military Research
  • Pulsed Power
  • Radiant Intensity
  • Specific Heat
  • Steady State
  • Surface Temperature
  • Thermophysical Properties

Fields of Study

  • Engineering
  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Computational Modeling and Simulation
  • Electrical Engineering