Measurement of ultrasonic shear wave amplitude using raman-nath parameter

Hiroki Kojoh; Kazuo Arakawa; Kiyoshi Takahashi; Satoshi Nagai

doi:10.7567/JJAPS.26S1.247

Measurement of ultrasonic shear wave amplitude using raman-nath parameter

Hiroki Kojoh, Kazuo Arakawa, Kiyoshi Takahashi, Satoshi Nagai

Renewable Energy Center

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The acousto-optic-diffraction method was employed to measure the amplitude of ultrasonic shear waves in a glassy polymer, poly(methyl methacrylate). The frequency was near 400 kHz, which is typically used in ultrasonic fractography studies of this material. The waves measured have an amplitude of 10⁴-10⁵ Pa and the amplitude attenuates almost exponentially. The attenuation coefficient obtained is about 0.21 Np/cm.

Original language	English
Pages (from-to)	247-249
Number of pages	3
Journal	Japanese Journal of Applied Physics
Volume	26
Issue number	S1
DOIs	https://doi.org/10.7567/JJAPS.26S1.247
Publication status	Published - Jan 1987

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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abstract = "The acousto-optic-diffraction method was employed to measure the amplitude of ultrasonic shear waves in a glassy polymer, poly(methyl methacrylate). The frequency was near 400 kHz, which is typically used in ultrasonic fractography studies of this material. The waves measured have an amplitude of 104-105 Pa and the amplitude attenuates almost exponentially. The attenuation coefficient obtained is about 0.21 Np/cm.",

author = "Hiroki Kojoh and Kazuo Arakawa and Kiyoshi Takahashi and Satoshi Nagai",

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AU - Takahashi, Kiyoshi

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AB - The acousto-optic-diffraction method was employed to measure the amplitude of ultrasonic shear waves in a glassy polymer, poly(methyl methacrylate). The frequency was near 400 kHz, which is typically used in ultrasonic fractography studies of this material. The waves measured have an amplitude of 104-105 Pa and the amplitude attenuates almost exponentially. The attenuation coefficient obtained is about 0.21 Np/cm.

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