Simultaneous imaging of flow and sound using high-speed parallel phase-shifting interferometry

Optics Letters
Kenji IshikawaHayato Niwa

Abstract

In this Letter, simultaneous imaging of flow and sound by using parallel phase-shifting interferometry and a high-speed polarization camera is proposed. The proposed method enables the visualization of flow and sound simultaneously by using the following two factors: (i) injection of the gas, whose density is different from the surrounding air, makes the flow visible to interferometry, and (ii) time-directional processing is applied for extracting the small-amplitude sound wave from the high-speed flow video. An experiment with a frame rate of 42,000 frames per second for visualizing the flow and sound emitted from a whistle was conducted. By applying time-directional processing to the obtained video, both flow emitted from the slit of the whistle and a spherical sound wave of 8.7 kHz were successively captured.

References

Feb 9, 2008·Applied Optics·N AndrésM Quintanilla
Jan 25, 2011·Biomedical Optics Express·Tatsuki TaharaOsamu Matoba
Nov 4, 2011·Optics Letters·Takashi KakueOsamu Matoba
May 9, 2012·The Journal of the Acoustical Society of America·Antoni Torras-RosellFinn Jacobsen
Dec 10, 2014·Optics Letters·Osamu MatobaYasuhiro Awatsuji
Jan 22, 2015·Optics Express·Karl BertlingThierry Bosch
Oct 16, 2015·Optics Letters·Avner Safrani, Ibrahim Abdulhalim
Jul 15, 2016·Optics Express·Kenji IshikawaMinoru Yoshii
Jan 7, 2017·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Kohei YatabeYasuhiro Oikawa
Sep 7, 2017·Scientific Reports·Takashi KakueTomoyoshi Ito

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Citations

Jul 14, 2018·Optics Letters·Risako TanigawaHayato Niwa
May 3, 2019·Applied Optics·Sudheesh K Rajput, Osamu Matoba
Feb 16, 2019·Optics Letters·Sudheesh K RajputYasuhiro Awatsuji
Dec 3, 2020·The Journal of the Acoustical Society of America·Kenji IshikawaYasuhiro Oikawa
Mar 11, 2021·Applied Optics·Yuki TakaseYasuhiro Awatsuji
Apr 3, 2021·Applied Optics·Sudheesh K RajputYasuhiro Awatsuji
Sep 3, 2021·The Journal of the Acoustical Society of America·Kenji IshikawaKatsuya Oguri

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