Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/61475
Título: | Wideband and wide beam polyvinylidene difluoride (PVDF) acoustic transducer for broadband underwater communications |
Autor(es): | Martins, Marcos Silva Faria, Carlos L. Matos, Tiago Gonçalves, L. M. Cabral, José Silva, António Jesus, Sérgio M. |
Palavras-chave: | polymer ultrasound transducer PVDF acoustic emitter wideband acoustic emitter wide beam acoustic emitter very high frequency acoustic emitter acoustic broadband communications underwater wireless communications |
Data: | 16-Set-2019 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Sensors |
Citação: | Martins, M.S.; Faria, C.L.; Matos, T.; Goncalves, L.M.; Cabral, J.; Silva, A.; Jesus, S.M. Wideband and Wide Beam Polyvinylidene Difluoride (PVDF) Acoustic Transducer for Broadband Underwater Communications. Sensors 2019, 19, 3991. |
Resumo(s): | 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/61475 |
DOI: | 10.3390/s19183991 |
ISSN: | 1424-8220 |
Versão da editora: | https://www.mdpi.com/1424-8220/19/18/3991 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | DEI - Artigos em revistas internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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sensors-19-03991-v2.pdf | 6,21 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons