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  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    New Scholte wave emitter: Application to nondestructive evaluation (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 3651-3652 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We briefly present the properties of a liquid/elastic solid interface wave called "Scholte–Stoneley wave.'' This wave is generated when a bulk wave meets the edge of the elastic solid in a perpendicular plane. This study leads to an original device for generating the Scholte wave. Using this simple setup, we show that the Scholte wave is diffracted by a default in the depth of the solid surface. In the same manner the commune extremity of two different solids stuck together is detected by this wave.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144247
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Circular interdigital transducers (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 466-473 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The purpose of this article is to establish the focusing properties of a new kind of transducer consisting of circular electrodes deposited on an isotropic substrate and covered by a thin piezoelectric layer. We first express the electromechanical equations of the device and determine its boundary conditions. Then, using the effective dielectric function and an appropriate approximation of the charge density, we obtain various functions (electric potential, displacements) giving a physical description of each medium. Last, we present the numerical results of our study, namely those concerning the displacements and proving the focusing capabilities of our device.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346816
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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