Electroacoustic response of 1-3 piezocomposite transducers for high power applications

Hyeong Jae Lee, Shujun Zhang, Xuecang Geng, Thomas R. Shrout

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The electroacoustic performance of 1-3 piezoelectric composite transducers with low loss polymer filler was studied and compared to monolithic Pb(Zr,Ti)O3 (PZT) piezoelectric transducers. The 1-3 composite transducers exhibited significantly high electromechanical coupling factor (kt ∼ 0.64) when compared to monolithic counterparts (k t ∼ 0.5), leading to the improved bandwidth and loop sensitivity, being on the order of 67% and -24.0 dB versus 44% and -24.8 dB, respectively. In addition, the acoustic output power and transmit efficiency (∼50%) were found to be comparable to the monolithic PZT transducers, demonstrating potential for broad bandwidth, high power ultrasonic transducer applications.

Original languageEnglish (US)
Article number253504
JournalApplied Physics Letters
Volume101
Issue number25
DOIs
StatePublished - Dec 17 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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