High-speed imaging of sound using parallel phase-shifting interferometry

Kenji Ishikawa, Kohei Yatabe, Nachanant Chitanont, Yusuke Ikeda, Yasuhiro Oikawa, Takashi Onuma, Hayato Niwa, Minoru Yoshii

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)

Abstract

Sound-field imaging, the visualization of spatial and temporal distribution of acoustical properties such as sound pressure, is useful for understanding acoustical phenomena. This study investigated the use of parallel phase-shifting interferometry (PPSI) with a high-speed polarization camera for imaging a sound field, particularly high-speed imaging of propagating sound waves. The experimental results showed that the instantaneous sound field, which was generated by ultrasonic transducers driven by a pure tone of 40 kHz, was quantitatively imaged. Hence, PPSI can be used in acoustical applications requiring spatial information of sound pressure.

Original languageEnglish
Pages (from-to)12922-12932
Number of pages11
JournalOptics Express
Volume24
Issue number12
DOIs
Publication statusPublished - 2016 Jun 13

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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