Global responses (efficiency, spatial resolution and dynamic range) of piezoelectric
equipment for ultrasonic NDE also depend on the related high-voltage driving-receiving …

Acoustic performance in ultrasonic transmitters can be improved by means of a suitable
electrical driving response and matching/tuning networks. It is important to predict this …

Ultrasonic NDT applications are frequently based on the spike excitation of piezoelectric
transducers by means of efficient pulsers which usually include a power switching device …

Piezoelectric ultrasonic transducers usually present a relatively low input electrical
impedance at high frequencies, as well as a strong reactive character, making it difficult to …

A global model for the pulsed ultrasonic responses of piezoelectric probes is presented. It
allows the evaluation of transducers electrical impedance, transfer functions, impulse …

NDE ultrasonic applications for quality control purposes, based on piezoelectric devices
working as pulsed ultrasonic probes, usually include some tuning circuit either across the …

A new global circuital model is proposed taking into account some piezoelectric and
electronic non-ideal aspects of the broadband ultrasonic transceivers used in NDT and …

Commercial ultrasonic equipment employing wideband piezoelectric transduction systems,
usually operate in through-transmission (TT) or pulseecho mode. These systems, which …

In principle, apart from laser generated ultrasound, two types of transducers,
electromagnetic acoustic transducers (EMAT) and piezoelectric transducers, are applied in …

The signal-to-noise ratios (SNR) of ultrasonic imaging and non-destructive evaluation (NDE)
applications can be greatly improved by driving each piezoelectric transducer (single or in …