Directivity patterns of a moving thermoelastic source in solid media.

Directivity patterns of a moving thermoelastic source in solid media. Research Abstract Details 

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Directivity patterns of a moving thermoelastic source in solid media. Abstract Text:

R K Ing,M Fink,F Gires,

Generation of ultrasonic displacements under the thermoelastic effect has the advantage of being contactless and nondestructive. Unfortunately, the directivity and energy of the sound field of such a source are limited. In order to change these parameters the authors use a moving thermoelastic source by moving the laser beam on the solid surface. Moving the laser beam allows control of the ultrasonic beam directivity and an increase in the energy of the sound field. For this purpose, a large impulse of dye laser deflected by an acoustooptic cell working under the Bragg mode is used. Experimental results, in an aluminum sample give good agreement with the theoretical prediction.

Directivity patterns of a moving thermoelastic source in solid media. Publishing Authors By Initials

RK Ing,M Fink,F Gires,

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Directivity patterns of a moving thermoelastic source in solid media. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: IEEE transactions on ultrasonics, ferroelectrics,

VOLUME: 39

Page Numbers: 285-92

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ISSN: 0885-3010

DAY: 11

MONTH: 02

YEAR: 1992

Directivity patterns of a moving thermoelastic source in solid media. Information

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LANGUAGE: eng

NlmUniqueID: 9882735

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AFFILIATION: Nat. Res. Council Canada Ind. Mater. Inst., Boucherville, Que.

Country: United States

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MEDLINETA: IEEE Trans Ultrason Ferroelect

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