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Experimental measurement of the electroelastic effect in thickness-mode langasite resonators.
|Title||Experimental measurement of the electroelastic effect in thickness-mode langasite resonators.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Zhang H, Turner J, Yang J, Kosinski J, Bao Y|
|Journal||IEEE transactions on ultrasonics, ferroelectrics, and frequency control|
|Date Published||2013 May|
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.
|Alternate Journal||IEEE Trans Ultrason Ferroelectr Freq Control|