Transducer arrays from piezoelectric hollow spheres

S. Alkoy, Richard Joseph Meyer, Jr., A. C. Hladky-Hennion, W. J. Hughes, J. K. Cochran, R. E. Newnham

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Abstract

Directional transducer arrays were prepared from lead zirconate titanate based piezoelectric ceramic hollow spheres (BBs). Compared to a single sphere, a 4×4 array of 16 spheres connected in parallel has a 22 dB higher transmitting voltage response (TVR) and a few dB higher free field voltage sensitivity (FFVS), but when the spheres are connected in a mix of series and parallel the sensitivity is 10-12 dB higher. In an array of spheres connected in parallel, increasing the sphere size from (radius=1.15 mm) to (r=1.35 mm), or increasing the radiating area results in an increase of up to 15 dB in TVR. Omnidirectional response up to 50 kHz, and directional response above that was obtained.

Original languageEnglish (US)
Pages737-740
Number of pages4
StatePublished - Dec 1 2000
Event12th IEEE International Symposium on Applications of Ferroelectrics - Honolulu, HI, United States
Duration: Jul 21 2000Aug 2 2000

Other

Other12th IEEE International Symposium on Applications of Ferroelectrics
CountryUnited States
CityHonolulu, HI
Period7/21/008/2/00

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All Science Journal Classification (ASJC) codes

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

Cite this

Alkoy, S., Meyer, Jr., R. J., Hladky-Hennion, A. C., Hughes, W. J., Cochran, J. K., & Newnham, R. E. (2000). Transducer arrays from piezoelectric hollow spheres. 737-740. Paper presented at 12th IEEE International Symposium on Applications of Ferroelectrics, Honolulu, HI, United States.