Comparison between resonance and non-resonance type piezoelectric acoustic absorbers

Joo Young Pyun, Young Hun Kim, Soo Won Kwon, Won Young Choi, Kwan Kyu Park

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, piezoelectric acoustic absorbers employing two receivers and one transmitter with a feedback controller were evaluated. Based on the target and resonance frequencies of the system, resonance and non-resonance models were designed and fabricated. With a lateral size less than half the wavelength, the model had stacked structures of lossy acoustic windows, polyvinylidene difluoride, and lead zirconate titanate-5A. The structures of both models were identical, except that the resonance model had steel backing material to adjust the center frequency. Both models were analyzed in the frequency and time domains, and the effectiveness of the absorbers was compared at the target and off-target frequencies. Both models were fabricated and acoustically and electrically characterized. Their reflection reduction ratios were evaluated in the quasi-continuous-wave and time-transient modes.

Original languageEnglish
Article number47
JournalSensors (Switzerland)
Volume20
Issue number1
DOIs
StatePublished - 2020 Jan 1

Fingerprint

nonresonance
Acoustics
absorbers
acoustics
Steel
difluorides
backups
vinylidene
transmitters
continuous radiation
Transmitters
controllers
receivers
steels
Feedback
Wavelength
Controllers
wavelengths
lead titanate zirconate
polyvinylidene fluoride

Keywords

  • Non-resonance model
  • Piezoelectric material
  • Resonance model

Cite this

Pyun, Joo Young ; Kim, Young Hun ; Kwon, Soo Won ; Choi, Won Young ; Park, Kwan Kyu. / Comparison between resonance and non-resonance type piezoelectric acoustic absorbers. In: Sensors (Switzerland). 2020 ; Vol. 20, No. 1.
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Comparison between resonance and non-resonance type piezoelectric acoustic absorbers. / Pyun, Joo Young; Kim, Young Hun; Kwon, Soo Won; Choi, Won Young; Park, Kwan Kyu.

In: Sensors (Switzerland), Vol. 20, No. 1, 47, 01.01.2020.

Research output: Contribution to journalArticle

TY - JOUR

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AU - Kwon, Soo Won

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AB - In this study, piezoelectric acoustic absorbers employing two receivers and one transmitter with a feedback controller were evaluated. Based on the target and resonance frequencies of the system, resonance and non-resonance models were designed and fabricated. With a lateral size less than half the wavelength, the model had stacked structures of lossy acoustic windows, polyvinylidene difluoride, and lead zirconate titanate-5A. The structures of both models were identical, except that the resonance model had steel backing material to adjust the center frequency. Both models were analyzed in the frequency and time domains, and the effectiveness of the absorbers was compared at the target and off-target frequencies. Both models were fabricated and acoustically and electrically characterized. Their reflection reduction ratios were evaluated in the quasi-continuous-wave and time-transient modes.

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