The velocity and attenuation of outgoing surface acoustic waves measured using an ultrasonic microscope with two focusing transducers |
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Authors: | S A Titov R G Maev A N Bogachenkov |
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Affiliation: | (1) Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 117977, Russia |
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Abstract: | A new method for measuring the local parameters of outgoing surface acoustic waves (OSAWs) is proposed. The technique employs a system of two focusing transducers, with the output signal taken from one of these scanning over the sample surface. In comparison with the conventional method with a single transducer moving in the direction normal to the sample surface, the proposed technique is capable of conducting measurements in a greater range of OSAW velocities and is less sensitive to parameters of the immersion liquid. The new method was experimentally verified by measuring systems with known properties. |
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