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April 19, 2026Journal of Applied PhysicsOpen Access

Design and development of PVDF-based hydrophone for underwater applications

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Authors

UJUmer JavaidHEHassan ElahiAQAdnan Qaseem

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Overview

Develops a PVDF-based hydrophone to enhance sensitivity in underwater acoustic sensing, suggesting improvements in material design.

Key Points

  • The aim is to create a more flexible hydrophone for improved underwater acoustic sensing using a PVDF architecture.
  • Design involves stacking four 1 mm PVDF layers with copper electrodes.
  • Utilized finite-element simulations in COMSOL Multiphysics for stress and modal response analysis.
  • Conducted parametric sweeps to optimize material properties of a 2 mm polyurethane jacket.
  • Fabricated the hydrophone using epoxy-bonded lamination and low-pressure polyurethane molding.
  • Achieved a simulated sensitivity of −203 ± 1 dB re 1 V/μPa up to 6 kHz.
  • Experimental free-field sensitivity matched simulation within ±2% error, validating the design.
  • The combined structure enhanced hydrostatic charge collection for improved sensitivity.

Cite This Study

Javaid et al. (2026) studied this question.

synapsesocial.com/papers/69e472d8010ef96374d8ebdehttps://doi.org/10.1063/5.0320580
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