Curved annular array transducers made from composite piezoelectric materials

Avner Shaulov, Wallace Arden Smith, John Zola, Donald Dorman

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


Spherically curved annular-array transducers have been developed using a composite piezoelectric material. The composite material allows the construction of sensitive, high-resolution arrays with elements defined by the electrode pattern alone. The array elements exhibit uniform properties and clean thickness-mode oscillations uncoupled to spurious lateral resonances. A prototype 3-MHz array exhibits a minimum insertion loss of 8 dB with a 6-dB fractional bandwidth of 57%. The -20-dB and -40-dB ringdown times in this array correspond to 3.3 and 6.2 periods, respectively.

Original languageEnglish
Pages (from-to)951-954
Number of pages4
JournalUltrasonics Symposium Proceedings
StatePublished - 1989
Externally publishedYes
EventIEEE 1989 Ultrasonics Symposium - Montreal, Que, Can
Duration: 3 Oct 19896 Oct 1989


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