Design, development and characterization of a mid-frequency (35 khz) tonpilz transducer array from 0.675PMN-0.325PT piezoceramics
Yükleniyor...
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Chulalognkorn University
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
A mid-frequency tonpilz transducer array was designed and analyzed by finite element method using commercial ATILA code and constructed using piezoceramic rings with lead magnesium niobate (PMN)-lead titanate (PT) composition. The morphotropic phase boundary (MPB)0.675Pb(Mg1/3Nb2/3)O-3-0.325PbTiO(3) composition was chosen to obtain higher performance from the transducer due to the superior dielectric and electromechanical properties of the MPB compositions. A pure perovskite phase was obtained from the ceramics. Piezoelectric charge coefficient (d(33)) was measured as 435 pC.N-1. Single tonpilz element and an array consisting of 7-unit array were constructed and later potted in polyurethane for underwater measurements. A second array was also constructed for comparison from commercial hard Pb(Zr,Ti)O-3-PZT ceramics. The longitudinal piston mode vibration frequency of the tonpilz transducer was measured around 33 kHz in air and around 35 kHz in water. The PMN-PT based array was found to have a comparable transmit perfonnance and a superior receive performance compared to PZT.
Açıklama
Anahtar Kelimeler
Tonpilz Transducer, Piezoelectricity, PMN-PT, FEA
Kaynak
Journal of Metals Materials and Minerals
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
32
Sayı
1