Characterization of PZT hollow-sphere transducers

J. T. Fielding, D. Smith, Richard Joseph Meyer, Jr., Susan E. Trolier-McKinstry, R. E. Newnham

Research output: Contribution to conferencePaper

7 Scopus citations

Abstract

Millimeter size, hollow spheres of lead zirconate titanate have been fabricated by blowing gas through a fine-grained slurry of PZT-5. Techniques were developed for the classification of defects in green and sintered spheres. The spheres were poled radially between inner and outer electrodes. The dielectric and piezoelectric properties were characterized for poled spheres. The two principal resonances were a breathing mode near 700 KHz and a wall thickness mode near 10 MHz. Hydrostatic dh coefficients approx. 1,000 pC/N were measured. Pulse-echo measurements were also performed to characterize transducer performance. Potential applications for these miniature omnidirectional transducers include biomedical imaging, flow noise sensors and hydrophones.

Original languageEnglish (US)
Pages202-205
Number of pages4
StatePublished - Dec 1 1994
EventProceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics - University Park, PA, USA
Duration: Aug 7 1994Aug 10 1994

Other

OtherProceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics
CityUniversity Park, PA, USA
Period8/7/948/10/94

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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