Experimental Mechanics

, Volume 14, Issue 8, pp 331–336 | Cite as

Development of capacitance strain transducers for high-temperature and biaxial applications

Paper describes work accomplished in the development of capacitance-type extensometers for use in specialized materials-test applications
  • L. M. Yeakley
  • U. S. Lindholm
Applications

Abstract

Both uniaxial and biaxial (linear/torsional) extensometers have been developed for use in materials-testing applications requiring large strain range, elevated temperatures and high testing speeds. The sensing elements in these extensometers are parallel capacitance plates. Water cooling of the sensing elements is used to achieve effective operating temperatures to 2000°F. The geometrical configurations of the capacitance plates and the electronic circuitry required to obtain linear transducers over a large strain range are described. Some examples of applications are given.

Keywords

Mechanical Engineer Elevated Temperature Fluid Dynamics Water Cool Large Strain 

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Copyright information

© Society for Experimental Mechanics, Inc. 1974

Authors and Affiliations

  • L. M. Yeakley
    • 1
  • U. S. Lindholm
    • 1
  1. 1.Southwest Research InstituteSan Antonio

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