Wideband and Wide Beam Polyvinylidene Difluoride (PVDF) Acoustic Transducer for Broadband Underwater Communications.

Clicks: 274
ID: 47964
2019
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Abstract
The advances in wireless communications are still very limited when intended to be used on Underwater Communication Systems mainly due to the adverse proprieties of the submarine channel to the acoustic and radio frequency (RF) waves propagation. This work describes the development and characterization of a polyvinylidene difluoride ultrasound transducer to be used as an emitter in underwater wireless communications. The transducer has a beam up to 10° × 70° degrees and a usable frequency band up to 1 MHz. The transducer was designed using Finite Elements Methods and compared with real measurements. Pool trials show a transmitting voltage response (TVR) of approximately 150 dB re µPa/V@1 m from 750 kHz to 1 MHz. Sea trials were carried in Ria Formosa, Faro (Portugal) over a 15 m source-receiver communication link. All the signals were successfully detected by cross-correlation using 10 chirp signals between 10 to 900 kHz.
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martins2019widebandsensors Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Martins, Marcos S;Faria, Carlos L;Matos, Tiago;Goncalves, Luís M;Cabral, José;Silva, António;Jesus, Sérgio M;
Journal sensors
Year 2019
DOI
E3991
URL
Keywords
pvdf acoustic emitter acoustic broadband communications polymer ultrasound transducer underwater wireless communications very high frequency acoustic emitter wide beam acoustic emitter wideband acoustic emitter

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