Detail publikace

Application of MEMS microphone array for acoustic holography

HAVRÁNEK, Z. BENEŠ, P. KLUSÁČEK, S.

Originální název

Application of MEMS microphone array for acoustic holography

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The paper shows the overall potential and applicability of microphone arrays equipped with MEMS miniature capacitive microphones for use with near-field acoustic holography algorithms to visualize and localize sound sources. Comprehensive test of double layer rectangular matrix microphone array and several acoustic holography algorithms has been carried out to find weaknesses of proposed MEMS array technology in practical measurement conditions including complex sources and disturbing sound field. Test setups include determination of secondary (disturbing) source strength, influence of distance of the primary and secondary sources and also measurement array stand-off distance on prediction accuracy of localization and characterization of sound and vibration sources. Attention is also focused on available signal-to-noise ratio of sound pressure measurement with applied MEMS microphones and its influence on determination of regularization parameters for inverse acoustic holography calculation. Drawbacks of complex or even unfeasible calibration procedure for such MEMS transducers also influence the presented prediction accuracy results in practical measurements.

Klíčová slova

acoustic holography, MEMS microphone, microphone arrays

Autoři

HAVRÁNEK, Z.; BENEŠ, P.; KLUSÁČEK, S.

Rok RIV

2015

Vydáno

31. 5. 2015

Nakladatel

European Acoustics Association

Místo

Maastricht, Belgie

ISSN

2226-5147

Periodikum

Proceedings - European Conference on Noise Control

Ročník

2015

Stát

neuvedeno

Strany od

919

Strany do

924

Strany počet

6

BibTex

@inproceedings{BUT115829,
  author="Zdeněk {Havránek} and Petr {Beneš} and Stanislav {Klusáček}",
  title="Application of MEMS microphone array for acoustic holography",
  booktitle="Proceedings of Euronoise 2015",
  year="2015",
  journal="Proceedings - European Conference on Noise Control",
  volume="2015",
  pages="919--924",
  publisher="European Acoustics Association",
  address="Maastricht, Belgie",
  issn="2226-5147"
}