Determination of acoustic properties of PMMA using ultrasonic through-transmission technique

In this paper, a non-destructive experimental method based on ultrasonic through-transmission technique has been developed to measure phase velocity and attenuation of both compressional and shear waves. Two pairs of transducers are used for the measurements, one with center frequency of 5 MHz, and the other pair with center frequency of 10 MHz. The method is tested on the homogeneous material Polymethylmethacrylate (PMMA).
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Determination of acoustic properties of PMMA using ultrasonic through-transmission technique