Feasibility of a truly collocated piezoelectric sensor/actuator

Jeffrey V. Kouri; Amy J. McCain; Robert M. Borchert

doi:10.1117/12.175187

6 May 1994 Feasibility of a truly collocated piezoelectric sensor/actuator

Jeffrey V. Kouri, Amy J. McCain, Robert M. Borchert

Proceedings Volume 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems; (1994) https://doi.org/10.1117/12.175187
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

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.

Citation Download Citation

Jeffrey V. Kouri, Amy J. McCain, and Robert M. Borchert "Feasibility of a truly collocated piezoelectric sensor/actuator", Proc. SPIE 2190, Smart Structures and Materials 1994: Smart Structures and Intelligent Systems, (6 May 1994); https://doi.org/10.1117/12.175187

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