DEVELOPMENT OF A HIGH-SENSITIVITY PIEZORESISTIVE SHOCK TRANSDUCER FOR THE LOW KILOBAR RANGE

Abstract

The shock piezoresistance response of two metals, ytterbium and bismuth, was investigated--ytterbium over a range from 4 to 40 kbar and bismuth at 10 and 20 kbar. The sensitivity of both materials at a few kilobars is approximately 12 times that of manganin and both show nonlinear, monotonically varying resistance-stress behavior. Unloading response was measured at from 10 and 20 kbar in ytterbium and found to be nonlinear at the higher range. A positive residual resistance was measured which was essentially independent of peak stress. A system consisting of the impact of two elastic materials was developed for the measurement of hysteresis. Comparison of static and dynamic piezoresistance data indicates that the difference between the two is too large to be attributed to temperature and geometrical considerations.

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Document Details

Document Type
Technical Report
Publication Date
Mar 25, 1970
Accession Number
AD0709438

Entities

People

  • Douglas D. Keough

Organizations

  • SRI International

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkanes
  • Crystal Structure
  • Diameters
  • Dielectrics
  • Elements
  • Films
  • Geometry
  • Impedance
  • Materials
  • Measurement
  • Metals
  • Phase Transformations
  • Physical Properties
  • Production
  • Silicon Controlled Rectifiers
  • Stress Waves
  • Vapor Deposition

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Materials Science and Engineering.
  • Optical Physics and Photonics.