NDLI: Cymbal drivers utilizing relaxor-based ferroelectric single crystal materials

Content Provider	IEEE Xplore Digital Library
Author	Tressler, J.F. Howarth, T.R.
Copyright Year	2000
Description	Author affiliation: US Naval Res. Lab., Washington, DC, USA (Tressler, J.F.)
Abstract	The U.S. Naval Research Laboratory (NRL) is currently investigating the performance of flextensional cymbal-based driver elements for use in a number of Navy-based applications, including underwater sound projectors and vibro-acoustic control. The active material in the cymbal driver has traditionally been a piezoelectric ceramic, namely Navy Type VI (PZT-5H). Standard 6.35-mm diameter cymbals driven by this piezoelectric ceramic exhibit a large axial displacement (1.7 /spl mu/m @ 100 V/mm - 0.1 Hz) but with a large hysteresis. There is great interest in eliminating this displacement hysteresis from the driver performance, especially in active control applications. Cymbals driven by relaxor-based ferroelectric single crystals exhibit markedly higher displacements (2.2 /spl mu/m @ 100 V/mm - 0.1 Hz) but with no hysteresis. This presentation will compare the displacement characteristics of cymbals driven by a PZT-5H and PZT-4 ceramic to ones utilizing PZN-4.5%PT single crystals as the active material.
Starting Page	561
Ending Page	564
File Size	431083
Page Count	4
File Format	PDF
ISBN	0780359402
ISSN	10994734
DOI	10.1109/ISAF.2000.942383
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-07-21
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Crystalline materials Ceramics Ferroelectric materials Hysteresis Piezoelectric materials Laboratories Crystals Displacement control Bonding Transformers
Content Type	Text
Resource Type	Article

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A comparison of the underwater acoustic performance of single crystal vs. piezoelectric ceramic based cymbal projectors

Can relaxor piezoelectric materials outperform PZT?

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Variable property crystal resonators by direct bonding techniques

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Cymbal drivers utilizing relaxor-based ferroelectric single crystal materials

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