Characteristics of piezoceramic and 3-3 piezocomposite hydrophones evaluated by finite element modelling

R Ramesh, H Kara, C R Bowen

Research output: Contribution to conferencePaper

18 Citations (Scopus)

Abstract

The transducer characteristics of hydrophones manufactured from porous 3-3 piezocomposites are compared with dense piezoceramic disc hydrophones using finite element modelling. Due to the complex porous structure of the 3-3 piezocomposites, a real-size 3-dimensional model was developed while a 2-dimensional axisymmetric model was constructed for the simple dense disc hydrophone. The electrical impedance and receiving sensitivity of the hydrophones in water were evaluated in the frequency range 10-100 kHz. The model results were compared with the experimental results. The sharp resonance peaks observed for the dense piezoceramic hydrophone were broadened to a large extent for porous piezocomposite hydrophones due to weaker coupling of the structure. The receiving sensitivity of piezocomposite hydrophones is found to be constant over the frequency range studied. The flat frequency response suggests that the 3-3 piezocomposites are useful for wide-band hydrophone applications. © 2004 Elsevier B.V. All rights reserved.

Conference

ConferenceComputational Materials Science
CountrySingapore
CitySingapore
Period1/01/04 → …

Fingerprint

hydrophones
frequency ranges
sensitivity
electrical impedance
frequency response
transducers
broadband
water

Keywords

  • Finite element method
  • Harmonic analysis
  • Transducers
  • Ultrasonics
  • Acoustic impedance
  • Hydrophones
  • Parameter estimation
  • Piezoelectric materials
  • Microstructure

Cite this

Ramesh, R., Kara, H., & Bowen, C. R. (2004). Characteristics of piezoceramic and 3-3 piezocomposite hydrophones evaluated by finite element modelling. 397-403. Paper presented at Computational Materials Science, Singapore, Singapore. https://doi.org/10.1016/j.commatsci.2004.02.027

Characteristics of piezoceramic and 3-3 piezocomposite hydrophones evaluated by finite element modelling. / Ramesh, R; Kara, H; Bowen, C R.

2004. 397-403 Paper presented at Computational Materials Science, Singapore, Singapore.

Research output: Contribution to conferencePaper

Ramesh, R, Kara, H & Bowen, CR 2004, 'Characteristics of piezoceramic and 3-3 piezocomposite hydrophones evaluated by finite element modelling' Paper presented at Computational Materials Science, Singapore, Singapore, 1/01/04, pp. 397-403. https://doi.org/10.1016/j.commatsci.2004.02.027
Ramesh, R ; Kara, H ; Bowen, C R. / Characteristics of piezoceramic and 3-3 piezocomposite hydrophones evaluated by finite element modelling. Paper presented at Computational Materials Science, Singapore, Singapore.7 p.
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AU - Bowen, C R

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N2 - The transducer characteristics of hydrophones manufactured from porous 3-3 piezocomposites are compared with dense piezoceramic disc hydrophones using finite element modelling. Due to the complex porous structure of the 3-3 piezocomposites, a real-size 3-dimensional model was developed while a 2-dimensional axisymmetric model was constructed for the simple dense disc hydrophone. The electrical impedance and receiving sensitivity of the hydrophones in water were evaluated in the frequency range 10-100 kHz. The model results were compared with the experimental results. The sharp resonance peaks observed for the dense piezoceramic hydrophone were broadened to a large extent for porous piezocomposite hydrophones due to weaker coupling of the structure. The receiving sensitivity of piezocomposite hydrophones is found to be constant over the frequency range studied. The flat frequency response suggests that the 3-3 piezocomposites are useful for wide-band hydrophone applications. © 2004 Elsevier B.V. All rights reserved.

AB - The transducer characteristics of hydrophones manufactured from porous 3-3 piezocomposites are compared with dense piezoceramic disc hydrophones using finite element modelling. Due to the complex porous structure of the 3-3 piezocomposites, a real-size 3-dimensional model was developed while a 2-dimensional axisymmetric model was constructed for the simple dense disc hydrophone. The electrical impedance and receiving sensitivity of the hydrophones in water were evaluated in the frequency range 10-100 kHz. The model results were compared with the experimental results. The sharp resonance peaks observed for the dense piezoceramic hydrophone were broadened to a large extent for porous piezocomposite hydrophones due to weaker coupling of the structure. The receiving sensitivity of piezocomposite hydrophones is found to be constant over the frequency range studied. The flat frequency response suggests that the 3-3 piezocomposites are useful for wide-band hydrophone applications. © 2004 Elsevier B.V. All rights reserved.

KW - Finite element method

KW - Harmonic analysis

KW - Transducers

KW - Ultrasonics

KW - Acoustic impedance

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KW - Parameter estimation

KW - Piezoelectric materials

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