An optical method for the detection of in-plane motion of acoustic waves propagating in solids

Che Hua Yang; Yua Ching Tsai

doi:10.4028/0-87849-412-x.91

An optical method for the detection of in-plane motion of acoustic waves propagating in solids

Che Hua Yang^*
, Yua Ching Tsai

^*Corresponding author for this work

Department of Mechanical Engineering

Chang Gung University

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

Abstract

A new interference-based optical technique called in-plane displacement interferometer (IPDI) is introduced for the detection of in-plane (IP) motion of ultrasonic waves. The IPDI employs a tiny square indentation of about 30 microns in width on the sample surface and a relatively simple optical arrangement for the detection of IP motion of ultrasonics waves. With the IPDI, measurement of IP motions of Lamb waves propagating along a thin brass foil is demonstrated. Dispersion relations for the So mode dominated by in-plane motion in the low fd (frequency times thickness) regime is obtained with the IPDI.

Original language	English
Pages (from-to)	91-94
Number of pages	4
Journal	Key Engineering Materials
Volume	321-323 I
DOIs	https://doi.org/10.4028/0-87849-412-x.91
State	Published - 2006

Keywords

In-plane motion
Indentation
Lamb wave
Laser ultrasound

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10.4028/0-87849-412-x.91

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abstract = "A new interference-based optical technique called in-plane displacement interferometer (IPDI) is introduced for the detection of in-plane (IP) motion of ultrasonic waves. The IPDI employs a tiny square indentation of about 30 microns in width on the sample surface and a relatively simple optical arrangement for the detection of IP motion of ultrasonics waves. With the IPDI, measurement of IP motions of Lamb waves propagating along a thin brass foil is demonstrated. Dispersion relations for the So mode dominated by in-plane motion in the low fd (frequency times thickness) regime is obtained with the IPDI.",

keywords = "In-plane motion, Indentation, Lamb wave, Laser ultrasound",

author = "Yang, \{Che Hua\} and Tsai, \{Yua Ching\}",

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T1 - An optical method for the detection of in-plane motion of acoustic waves propagating in solids

AU - Yang, Che Hua

AU - Tsai, Yua Ching

PY - 2006

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N2 - A new interference-based optical technique called in-plane displacement interferometer (IPDI) is introduced for the detection of in-plane (IP) motion of ultrasonic waves. The IPDI employs a tiny square indentation of about 30 microns in width on the sample surface and a relatively simple optical arrangement for the detection of IP motion of ultrasonics waves. With the IPDI, measurement of IP motions of Lamb waves propagating along a thin brass foil is demonstrated. Dispersion relations for the So mode dominated by in-plane motion in the low fd (frequency times thickness) regime is obtained with the IPDI.

AB - A new interference-based optical technique called in-plane displacement interferometer (IPDI) is introduced for the detection of in-plane (IP) motion of ultrasonic waves. The IPDI employs a tiny square indentation of about 30 microns in width on the sample surface and a relatively simple optical arrangement for the detection of IP motion of ultrasonics waves. With the IPDI, measurement of IP motions of Lamb waves propagating along a thin brass foil is demonstrated. Dispersion relations for the So mode dominated by in-plane motion in the low fd (frequency times thickness) regime is obtained with the IPDI.

KW - In-plane motion

KW - Indentation

KW - Lamb wave

KW - Laser ultrasound

UR - https://www.scopus.com/pages/publications/33749495715

U2 - 10.4028/0-87849-412-x.91

DO - 10.4028/0-87849-412-x.91

M3 - 文章

AN - SCOPUS:33749495715

SN - 1013-9826

VL - 321-323 I

SP - 91

EP - 94

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

An optical method for the detection of in-plane motion of acoustic waves propagating in solids

Abstract

Keywords

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