This article presents a comprehensive review of the laser-based guided ultrasonic waves
propagation imaging (G-UPI) system and respective signal/data processing methods related …

Full wavefield measurements obtained with either an air-coupled transducer mounted on a
scanning stage or a scanning laser vibrometer can be combined with effective signal and …

Lamb waves have shown great potentials in damage detection of thin-walled structures due
to their long propagation capability and sensitivity to a variety of damage types. However …

Lamb waves are dispersive and multi-modal, which makes the interpretation of Lamb wave
signals very difficult in either the time or frequency domain. In the this article, we present our …

The paper presents experimental and theoretical studies of wave phenomena
accompanying transient edge waves (EW) excitation by a piezoelectric transducer attached …

Traditional ultrasonic testing uses a single probe or phased array probe to investigate and
visualize defects by adapting certain imaging algorithms. The time-domain synthetic …

The multimodal characteristic of Lamb waves makes the interpretation of Lamb wave signals
difficult in either the time or frequency domain. In this work, we present our study of Lamb …

A new type of a lightweight piezoelectric transducer is proposed for selective excitation of
horizontal polarized shear (SH) waves. Based on piezoelectric fibers the transducers are …

Ultrasonic wavefield imaging refers to acquiring full waveform data over a region of interest
for waves generated by a stationary source. Although various implementations of wavefield …

The existence of the edge waves spectrum predicted in a series of recent theoretical studies
is investigated and confirmed experimentally. Wave motion in 20 mm thickness aluminium …