Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29146
Title: Determination of the piezoelectric coefficient d33 at high frequency by laser interferometry
Authors: Zhao, Z
Chan, HLW 
Choy, CL 
Issue Date: 1997
Publisher: Taylor & Francis Inc.
Source: Ferroelectrics, 1997, v. 195, no. 1-4, p. 35-38 How to cite?
Journal: Ferroelectrics 
Abstract: The charge coefficient d33 of a piezoelectric material is usually measured at low frequency (50 - 100 Hz) using devices such as the Berlincourt meter and this d33 is then assumed to be a constant at all other frequencies. To test the validity of this assumption, a high frequency optical heterodyne interferometer was used to measure d33 as a function of frequency up to the megahertz region where the piezoelectric materials are used in transducer applications. The coefficient was obtained by measuring the strain induced by an applied electric field. The materials studied included z-cut lithium niobate (LiNbO3) and vinylidene fluoride/trifluoroethylene (VF2/VF3) copolymer. The results are reported.
URI: http://hdl.handle.net/10397/29146
ISSN: 0015-0193
EISSN: 1563-5112
DOI: 10.1080/00150199708260482
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