Accession Number:

ADA194956

Title:

Piezoelectric and Electrostrictive Materials for Transducer Applications. Volume 2.

Descriptive Note:

Annual rept. 1 Jan-31 Dec 87,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK MATERIALS RESEARCH LAB

Report Date:

1988-03-01

Pagination or Media Count:

196.0

Abstract:

A modified Michelson interferometer is used to study the strain properties of piezoelectric and electrostrictive materials. For small displacement, a feedback loop is introduced to stabilize the system against the low frequency optical path-length drifting and the system is capable of resolving displacements of the order of .001 A. For the strain induced by domain switching a dual-channel signal detection scheme is used which automatically reads out the displacement of the sample. The effect on the measurement of the sample bonding to a substrate and other related problems are discussed.

Subject Categories:

  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE