A3.4 - Signal processing for ultrasonic clamp-on-sensor systems

S. Wöckel, U. Hempel & J. Auge
The paper addresses several techniques of signal processing in case of non-invasive ultrasonic applications. In first the signal oriented modelling of linear systems demonstrates the estimation of wave propagation and mode conversion in layered media. Its reliability in case of curvilinear surfaces, divergent sound fields and non-perpendicular incident with additional interface effects is discussed. In extension the paper deals with the potential of coding techniques to substitute any arbitrary short pulse signal with increased signal...