Seeing the sound we hear: optical technologies for visualizing sound wave

Yasuhiro Oikawa; Kenji Ishikawa; Kohei Yatabe; Takashi Onuma; Hayato Niwa

doi:10.1117/12.2305323

16 May 2018 Seeing the sound we hear: optical technologies for visualizing sound wave

Yasuhiro Oikawa, Kenji Ishikawa, Kohei Yatabe, Takashi Onuma, Hayato Niwa

Proceedings Volume 10666, Three-Dimensional Imaging, Visualization, and Display 2018; 106660C (2018) https://doi.org/10.1117/12.2305323
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

Abstract

Optical methods have been applied to visualize sound waves, and these have received a considerable amount of attention in both optical and acoustical communities. We have researched optical methods for sound imaging including laser Doppler vibrometry and Schlieren method. More recently, parallel phase-shifting interferometry with a high-speed polarization camera has been used, and it can take a slow-motion video of sound waves in the audible range. This presentation briefly reviews the recent progress in optical imaging of sound in air and introduces the applications including acoustic transducer testing and investigation of acoustic phenomena.

Citation Download Citation

Yasuhiro Oikawa, Kenji Ishikawa, Kohei Yatabe, Takashi Onuma, and Hayato Niwa "Seeing the sound we hear: optical technologies for visualizing sound wave", Proc. SPIE 10666, Three-Dimensional Imaging, Visualization, and Display 2018, 106660C (16 May 2018); https://doi.org/10.1117/12.2305323

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