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Proceedings Paper

Feasibility of a truly collocated piezoelectric sensor/actuator
Author(s): Jeffrey V. Kouri; Amy J. McCain; Robert M. Borchert
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Paper Abstract

Piezoelectric ceramics have become an area of interest in the smart structures arena during the past several years. They have shown promise in the area of structures control because of their simplicity, low power consumption, application to wide frequency range, and ability to be attached to structures in a distributed nature. In addition, an attractive feature of piezoceramics is that they have the ability to act as both as a sensor and/or an actuator. In fact, a piezoelectric element can act in both capacities simultaneously. This is particularly attractive to the controls designer because a self-sensing piezoactuator can be considered to be a collocated sensor-actuator pair. This paper deals with the comparisons between analytical and experimental results of piezoelectrics as both sensors and actuators. It contains a survey of some of works conducted in the area of self- sensing actuators, and briefly discusses their results. It also contains analytical and experimental results of work conducted at the United States Air Force Academy with a two meter aluminum beam instrumented and actuated with piezoelectric patches. Results include comparisons of transfer functions for various collocated sensor/actuator pairs to numerical results.

Paper Details

Date Published: 6 May 1994
PDF: 10 pages
Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); doi: 10.1117/12.175187
Show Author Affiliations
Jeffrey V. Kouri, U.S. Air Force Academy (United States)
Amy J. McCain, U.S. Air Force Academy (United States)
Robert M. Borchert, U.S. Air Force Academy (United States)


Published in SPIE Proceedings Vol. 2190:
Smart Structures and Materials 1994: Smart Structures and Intelligent Systems
Nesbitt W. Hagood, Editor(s)

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