Tomography of Ultrasonic Beam Using Schlieren Method for Data Acquisition

Mizutani, Koichi; Yoshinari, Kouichi; Ezure, Tomohiro; Nagai, Keinosuke

doi:10.1541/ieejsmas.120.292

Cited by 3 publications

(1 citation statement)

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“…8) Tomographic image of the ultrasonic beam were visualized by Mizutani et al using computerized tomography (CT) in 2000. 9) In this paper, we propose an optical measurement of optical phase deviation in proportion to sound fields using the Mach-Zehnder interferometer. Quantitative phase measurement is possible when the Mach-Zehnder interferometer is used.…”

Section: Introductionmentioning

confidence: 99%

Optical Measurement of Sound Fields Information Using Mach-Zehnder Interferometer

Mizutani

Ezure

Nagai

et al. 2001

Jpn. J. Appl. Phys.

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An optical method for measuring information of sound fields using the Mach-Zehnder interferometer is described. The Mach-Zehnder interferometer is advantageous for obtaining quantitative measurements of phase values in comparison to other visualization methods. In this study, we simultaneously investigate a two-dimensional data acquisition system for the projection image of an optical phase deviation in proportion to sound fields below the frequency of 2.16 MHz. In the experiment, the charge-coupled device (CCD) camera is used as a function of a mean value detector. The experimental results of the optical phase deviation along the ultrasound axis are useful as primary data for estimating the sound pressure. The two-dimensional measurement system using a CCD camera proposed in this paper has the advantages of acquiring the data in a short time when used in an environment where the measurement conditions change.

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Section: Introductionmentioning

confidence: 99%