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Proceedings Paper

Smart mechanical transducers: a comparative study of piezoelectric materials
Author(s): Rosa Marat-Mendes; C. J. Dias; J. N. Marat-Mendes
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Paper Abstract

A comparative study of piezoelectric materials is used to measure the angular acceleration with a mechanical transducer. The piezoelectric materials used in this transducer were either a pre-polarised PVDF file, a pre-polarized PTCa plate, a pre-polarized PZT plate or a polymer/ceramic piezoelectric composite films of (PTCa:P(VDF/TrFE)50:50vol%). The transducer consists of a circular plate with two masses connected mechanically and electrically between them. Between the masses and the plate (on each side of it) is glued a piece of piezoelectric material metalized and polarized. The main advantages of this type of transducers are their low cost compared with other sensors and that there are no moving parts. All experimental results are in good agreement with the theoretical ones, however the best results are obtained when a PZT transducer is used.

Paper Details

Date Published: 24 August 2000
PDF: 9 pages
Proc. SPIE 4073, Fifth European Conference on Smart Structures and Materials, (24 August 2000); doi: 10.1117/12.396416
Show Author Affiliations
Rosa Marat-Mendes, Instituto Politecnico de Setubal (Portugal)
C. J. Dias, Univ. Nova de Lisboa (Portugal)
J. N. Marat-Mendes, Univ. Nova de Lisboa (Portugal)

Published in SPIE Proceedings Vol. 4073:
Fifth European Conference on Smart Structures and Materials
Pierre Francois Gobin; Clifford M. Friend, Editor(s)

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