Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Jean C. Piquette"'
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 56:821-826
Two competing approaches for calculating coupling coefficients for lossy piezoelectric materials, one producing a real result and the other a complex result, are compared and analyzed. It is found that the complex coupling coefficient suffers from ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa4f5e13d19cff53f26ed9dddebe9f22
https://doi.org/10.1109/tuffc.2009.1105
https://doi.org/10.1109/tuffc.2009.1105
Autor:
Jean C. Piquette
Publikováno v:
The Journal of the Acoustical Society of America. 115:2110-2121
A technique is presented for determining, from underwater acoustic panel tests, passive-material shear sound speed and attenuation as functions of frequency and temperature. The frequency band of 10–200 kHz was used for development, but the applica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd87797a4079cfe43f986595cdad71f5
https://doi.org/10.1121/1.1687833
https://doi.org/10.1121/1.1687833
Autor:
Jean C. Piquette, Anthony Paolero
Publikováno v:
The Journal of the Acoustical Society of America. 113:1518-1525
A technique for measuring the change in phase produced by the insertion of a panel between a projector and receiver is described. Presented also is a procedure for determining the phase speed and attenuation of the panel material. Although the method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db5299acceae93865c2cd7255ba886ce
https://doi.org/10.1121/1.1531984
https://doi.org/10.1121/1.1531984
Autor:
Jean C. Piquette
Publikováno v:
Physics Today. 65:10-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9cd2321bb96941fe6d3056e0ac4fb77
https://doi.org/10.1063/pt.3.1577
https://doi.org/10.1063/pt.3.1577
Publikováno v:
Journal of Applied Physics. 92:438-443
A simple physical picture, useful for extended applications of a well-demonstrated phenomenological polarization model [J. C. Piquette and S. E. Forsythe, J. Acoust. Soc. Am. 101, 289 (1997)] is presented. The Weiss model of interacting dipoles (orgi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b73cec7b327c0b957ad328970c85754
https://doi.org/10.1063/1.1482429
https://doi.org/10.1063/1.1482429
Publikováno v:
The Journal of the Acoustical Society of America. 110:865-876
The problem of determining the drive waveform that produces a desired output from a hysteretic, saturating material is considered both theoretically and experimentally. The specific problem of interest is the production of a high-amplitude, but monof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2eaf02df600a05b3da65c3e5769458a0
https://doi.org/10.1121/1.1381537
https://doi.org/10.1121/1.1381537
Autor:
Jean C. Piquette
Publikováno v:
The Journal of the Acoustical Society of America. 110:197-207
A generalized definition of the coupling coefficient, useful for the evaluation of transducers that incorporate an electrostrictive active element, is introduced. The definition is expressed under quasistatic conditions and becomes zero when no bias
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22f3e901087625fd62625d99659b0056
https://doi.org/10.1121/1.1377291
https://doi.org/10.1121/1.1377291
Autor:
Jean C. Piquette, Ralph C. Smith
Publikováno v:
The Journal of the Acoustical Society of America. 108:1651-1662
Four anhysteretic polarization models that have been used in the literature to evaluate data acquired from lead magnesium niobate (PMN) are analyzed and compared. Derivations of two of the models from assumed spatial distributions of dipole energy st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dca7ce60d91baf20df2ecdd492f438e
https://doi.org/10.1121/1.1310670
https://doi.org/10.1121/1.1310670
Autor:
Jean C. Piquette, Stephen E. Forsythe
Publikováno v:
The Journal of the Acoustical Society of America. 106:3328-3334
A model of hysteresis is applied to determine material response to multifrequency drives, and to the output control problem. Although as presented in Paper I the model is based on a monofrequency sinusoidal drive, it can readily be generalized. The g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0df3f1887b5cacbfdb3a4e5560aef05b
https://doi.org/10.1121/1.428186
https://doi.org/10.1121/1.428186
Autor:
Jean C. Piquette, Stephen E. Forsythe
Publikováno v:
The Journal of the Acoustical Society of America. 106:3317-3327
A one-dimensional phenomenological model of hysteresis is presented. The model is suitable for application both to electrostrictive materials, such as lead magnesium niobate (PMN), and to magnetostrictive materials, such as Terfenol D. The concepts o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e055d753d438c27826a462e788b0036
https://doi.org/10.1121/1.428185
https://doi.org/10.1121/1.428185