TY JOUR TI Multiple Ultrasonic Echo Signals in a Plate. Determination and Application KW ultrasonic pulses KW multiple echo signals KW longitudinal wave velocity KW transversal wave KW bottom echo KW piezoelectric transducer KW EMAT KW Poisson ratio JO NDT World AU Shevaldykin, V.. AU Bobrov, V.T. PY 2016 IS 19 PB LLC SVEN