Sensitivity Improvement in the Measurement of Sound Pressure with Parallel Phase-Shifting Digital Holography by Time-Frequency Filtering

Sota Hashimoto; Yuki Takase; Tomoyoshi Inoue; Tomoyoshi Inoue; Kenzo Nishio; Peng Xia; Sudheesh K. Rajput; Osamu Matoba; Yasuhiro Awatsuji

doi:10.1364/DH.2022.W5A.51

Digital Holography and 3-D Imaging 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper W5A.51
•https://doi.org/10.1364/DH.2022.W5A.51

Sensitivity Improvement in the Measurement of Sound Pressure with Parallel Phase-Shifting Digital Holography by Time-Frequency Filtering

Sota Hashimoto, Yuki Takase, Tomoyoshi Inoue, Kenzo Nishio, Peng Xia, Sudheesh K. Rajput, Osamu Matoba, and Yasuhiro Awatsuji

Digital Holography and Three-Dimensional Imaging 2022

Cambridge United Kingdom
1–4 August 2022
ISBN: 978-1-957171-12-8

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Joint Poster Session II: Virtual (W5A)

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S. Hashimoto, Y. Takase, T. Inoue, K. Nishio, P. Xia, S. K. Rajput, O. Matoba, and Y. Awatsuji, "Sensitivity Improvement in the Measurement of Sound Pressure with Parallel Phase-Shifting Digital Holography by Time-Frequency Filtering," in Digital Holography and 3-D Imaging 2022, D. Chu, J. Park, C. Cheng, and P. Ferraro, eds., Technical Digest Series (Optica Publishing Group, 2022), paper W5A.51.

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Abstract

We propose a method for improving the sensitivity in measurement of sound pressure with parallel phase-shifting digital holography by time-frequency filtering. We succeeded in measuring of acoustic wave at 97.75 dB sound pressure level.

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