Experimental measurement of the electroelastic effect in thickness-mode langasite resonators.

TitleExperimental measurement of the electroelastic effect in thickness-mode langasite resonators.
Publication TypeJournal Article
Year of Publication2013
AuthorsZhang H, Turner J, Yang J, Kosinski J, Bao Y
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume60
Issue5
Pagination970-4
Date Published2013 May
Abstract

The electroelastic effect describes the shift in resonant frequency that a resonator experiences as a result of the application of a dc electrical field. We report on experimental measurements of the electroelastic effect observed in fourteen plano-plano configuration thickness-mode langasite (La3Ga5SiO14) resonators. The orientations of the fourteen samples provide a sufficient data set to extract all eight of the third-order piezoelectric constants of this material. The role of this type of measurement in determining third-order piezoelectric constants is discussed. We compare the experimentally observed behavior to that predicted when using the langasite material constants currently available in the literature.

DOI10.3978/j.issn.2225-319X.2012.11.17
Alternate JournalIEEE Trans Ultrason Ferroelectr Freq Control