Experimental and finite element model directivity comparison between PZT and PMN-PT kerfless arrays

Philip P. Garland, Andre B. Bezanson, Robert B.A. Adamson, Jeremy A. Brown

Résultat de recherche: Conference contribution

3 Citations (Scopus)

Résumé

This paper describes a preliminary study in comparing the directivity patterns of kerfless linear arrays when the piezoelectric substrate is changed from conventional PZT-5H to the next generation PMN-PT32% single crystal piezoelectric. The directivity patterns were compared both through finite element modeling and experiment. It was also found that a significantly better directivity pattern for PMN-PT32% could be measured when the unelectroded substrate between the elements was locked into what we presume is a different morphotropic phase than the active elements. The -6 dB one-way directivity was measured to be ± 18° degrees for the PZT kerfless array, ± 12° degrees for the PMN-PT array with a single uniform phase throughout the crystal, and ± 52° degrees for the PMN-PT crystal with what we assume are different mechanical properties in the substrate between the elements.

Langue d'origineEnglish
Titre de la publication principale2011 IEEE International Ultrasonics Symposium, IUS 2011
Pages365-368
Nombre de pages4
DOI
Statut de publicationPublished - 2011
Événement2011 IEEE International Ultrasonics Symposium, IUS 2011 - Orlando, FL, United States
Durée: oct. 18 2011oct. 21 2011

Séries de publication

PrénomIEEE International Ultrasonics Symposium, IUS
ISSN (imprimé)1948-5719
ISSN (électronique)1948-5727

Conference

Conference2011 IEEE International Ultrasonics Symposium, IUS 2011
Pays/TerritoireUnited States
VilleOrlando, FL
Période10/18/1110/21/11

ASJC Scopus Subject Areas

  • Acoustics and Ultrasonics

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