Physical-model-based reconstruction of axisymmetric three-dimensional sound field from optical interferometric measurement

Kenji Ishikawa, Kohei Yatabe, Yasuhiro Oikawa

研究成果: Article査読

抄録

Optical interferometric measurement methods for sound fields have garnered considerable attention owing to their contactless nature. The capabilities of non-invasive measurement and reconstruction of three-dimensional sound fields are significant for characterizing acoustic transducers. However, three-dimensional reconstructions are typically time consuming because of the two-dimensional scanning and rotation of the measurement system. This paper presents a scan and rotation-free reconstruction of an axisymmetric sound field in the human hearing range. A physical-model-based algorithm is proposed to reconstruct an axisymmetric sound field from optical interferograms recorded using parallel phase-shifting interferometry and a high-speed polarization camera. We demonstrate that audible sound fields can be reconstructed from data measured in 10 ms. The proposed method is effective for the rapid evaluation of axially symmetric acoustic transducers.

本文言語English
論文番号045202
ジャーナルMeasurement Science and Technology
32
4
DOI
出版ステータスPublished - 2021 4

ASJC Scopus subject areas

  • 器械工学
  • 工学(その他)
  • 応用数学

フィンガープリント

「Physical-model-based reconstruction of axisymmetric three-dimensional sound field from optical interferometric measurement」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル