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Frequency dependence of laser ultrasonic SAW phase velocities measurements

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Frequency dependence of laser ultrasonic SAW phase velocities measurements. / Li, Chunhui; Song, Shaozhen; Guan, Guangying; Wang, Ruikang K.; Huang, Zhihong.

In: Ultrasonics, Vol. 53, No. 1, 01.2013, p. 191-195.

Research output: Contribution to journalArticle

Harvard

Li, C, Song, S, Guan, G, Wang, RK & Huang, Z 2013, 'Frequency dependence of laser ultrasonic SAW phase velocities measurements' Ultrasonics, vol 53, no. 1, pp. 191-195.

APA

Li, C., Song, S., Guan, G., Wang, R. K., & Huang, Z. (2013). Frequency dependence of laser ultrasonic SAW phase velocities measurements. Ultrasonics, 53(1), 191-195doi: 10.1016/j.ultras.2012.05.009

Vancouver

Li C, Song S, Guan G, Wang RK, Huang Z. Frequency dependence of laser ultrasonic SAW phase velocities measurements. Ultrasonics. 2013 Jan;53(1):191-195.

Author

Li, Chunhui; Song, Shaozhen; Guan, Guangying; Wang, Ruikang K.; Huang, Zhihong / Frequency dependence of laser ultrasonic SAW phase velocities measurements.

In: Ultrasonics, Vol. 53, No. 1, 01.2013, p. 191-195.

Research output: Contribution to journalArticle

Bibtex - Download

@article{4561f703fd60491abe860756534b8074,
title = "Frequency dependence of laser ultrasonic SAW phase velocities measurements",
author = "Chunhui Li and Shaozhen Song and Guangying Guan and Wang, {Ruikang K.} and Zhihong Huang",
note = "Copyright 2012 Elsevier B.V., All rights reserved.",
year = "2013",
volume = "53",
number = "1",
pages = "191--195",
journal = "Ultrasonics",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Frequency dependence of laser ultrasonic SAW phase velocities measurements

A1 - Li,Chunhui

A1 - Song,Shaozhen

A1 - Guan,Guangying

A1 - Wang,Ruikang K.

A1 - Huang,Zhihong

AU - Li,Chunhui

AU - Song,Shaozhen

AU - Guan,Guangying

AU - Wang,Ruikang K.

AU - Huang,Zhihong

PY - 2013/1

Y1 - 2013/1

N2 - Advances in the field of laser ultrasonics have opened up new possibilities in applications in many areas. This paper verifies the relationship between phase velocities of different materials, including hard solid and soft solid, and the frequency range of SAW signal. We propose a novel approach that utilizes a low coherence interferometer to detect the laser-induced surface acoustic waves (SAWs). A Nd:YAG focused laser line-source is applied to steel, iron, plastic plates and a 3.5% agar-agar phantom. The generated SAW signals are detected by a time domain low coherence interferometry system. SAW phase velocity dispersion curves were calculated, from which the elasticity of the specimens was evaluated. The relationship between frequency content and phase velocities was analyzed. We show that the experimental results agreed well with those of the theoretical expectations.

AB - Advances in the field of laser ultrasonics have opened up new possibilities in applications in many areas. This paper verifies the relationship between phase velocities of different materials, including hard solid and soft solid, and the frequency range of SAW signal. We propose a novel approach that utilizes a low coherence interferometer to detect the laser-induced surface acoustic waves (SAWs). A Nd:YAG focused laser line-source is applied to steel, iron, plastic plates and a 3.5% agar-agar phantom. The generated SAW signals are detected by a time domain low coherence interferometry system. SAW phase velocity dispersion curves were calculated, from which the elasticity of the specimens was evaluated. The relationship between frequency content and phase velocities was analyzed. We show that the experimental results agreed well with those of the theoretical expectations.

KW - Surface acoustic wave (SAW)

KW - Frequency content

KW - Laser ultrasonics

KW - GENERATION

KW - ELASTIC PROPERTIES

KW - LINE SOURCE

KW - WAVES

KW - CONSTANTS

KW - Phase velocity

KW - Young's modulus

UR - http://www.scopus.com/inward/record.url?partnerID=yv4JPVwI&eid=2-s2.0-84869118392&md5=dad6f66028894ba62e1d542541950f99

U2 - 10.1016/j.ultras.2012.05.009

DO - 10.1016/j.ultras.2012.05.009

M1 - Article

JO - Ultrasonics

JF - Ultrasonics

IS - 1

VL - 53

SP - 191

EP - 195

ER -

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