OPTICAL IMAGING OF TRANSIENT ACOUSTIC FIELDS GENERATED BY PIEZOCOMPOSITE TRANSDUCERS

被引：11

作者：

GENDREU, P ^{[1
]}

FINK, M ^{[1
]}

ROYER, D ^{[1
]}

机构：

[1] UNIV PARIS 07,ONDES & ACOUST LAB,CNRS,URA 1503,F-75231 PARIS 05,FRANCE

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1995年 / 42卷 / 01期

关键词：

D O I：

10.1109/58.368303

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Transient surface displacements of 1-3 piezocomposite transducers are measured and their correlative effects on the diffraction of the transmitted pulses are studied, The displacements of the surface of a 210 mu m pitch piezocomposite are probed with an heterodyne, optical interferometer, An animate sequence is then built from the stored transient displacements so that each frame shows the instantaneous state of the surface of the piezocomposite, Such an animation proves to be a powerful analysing tool which provides a real insight into the piezocomposite's impulse behavior, Finally, the ultrasonic held transmitted in water and measured by the same optical probe is compared with simulations based on the diffraction impulse theory, The results of that comparison deafly show that, as far as diffraction is concerned, a piezocomposite transducer behaves like a homogeneous material.

引用

页码：135 / 143

页数：9

共 11 条

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