MEASUREMENT OF DISPLACEMENTS IN CONTACT-STRESS EXPERIMENTS

Abstract

A major part of the instrumentation for contactstress investigations being carried out at the University of Minnesota has the function of providing displacement measurements in the microinch range. A modified phonograph-type displacement pickup and an interferometer for calibrating it are described. In addition, there are described a piezoelectric driving transducer used to load spheres upon which experiments are performed, a capacitance-type displacement pickup, and modifications of an Instron testing machine upon which the apparatus is mounted. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1961
Accession Number
AD0268888

Entities

People

  • G.e. Bowie

Organizations

  • University of Minnesota

Tags

DTIC Thesaurus Topics

  • Capacitance
  • Displacement
  • Instrumentation
  • Interferometers
  • Measurement
  • Measuring Instruments
  • Minnesota
  • Phonographs
  • Transducers
  • Universities

Readers

  • Aerospace Test and Evaluation
  • Structural Dynamics.