Hydrophone arrays assembled from PZT ceramic foams

H. Kara, R. Ramesh, R. Stevens, N. Jayasundere, V. Humphrey, C. R. Bowen

Research output: Contribution to journalArticlepeer-review

6 Citations (SciVal)


A 3 × 3 hydrophone array for low frequency applications was constructed from reticulated PZT ceramic foams. The hydrophone array was tested for receiving sensitivity and compared with single element PZT-air and dense PZT hydrophones. The composite array showed a flat response in the 20 kHz-100 kHz frequency range while the single element hydrophone displayed broadening radial resonance around 50 kHz. The flat, broadband response indicates that the radial resonance is suppressed by both porous nature of the PZT-air composites and the array construction of the hydrophone. The sensitivity of the array hydrophone was -205 dB re 1 VμPa-1.
Original languageEnglish
Pages (from-to)201-206
Number of pages6
JournalIntegrated Ferroelectrics
Publication statusPublished - 2004

Bibliographical note

ID number: ISI:000222470900035


  • Ceramic matrix composites
  • Electron resonance
  • Hydrophones
  • Ceramic foams
  • Piezoelectric materials
  • Broadband networks
  • Natural frequencies
  • Arrays


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