Traditionally, the cavitation threshold is defined by some combination of vapor pressure and
surface tension. However, these formulations present a large discrepancy with experimental …

Light refractive tomography is an optical measurement technique that is able to provide
absolute sound pressure values in specified volumes. Because of the simplicity of the …

Pulsed acoustic waves in water generated by ultrasonic transducers with power levels in the
medical diagnostic range are characterized by analyzing the optical diffraction patterns of …

Acoustic intensity is a very important parameter in high frequency ultrasound cleaning. The
intensity variations in a cleaning bath are measured with a raster scanned hydrophone and …

A newly developed multiple moving membrane capacitive micromachined ultrasonic
transducer (M3-CMUT) is fabricated and characterized in this thesis. Unlike the single …

In this thesis, a measurement set-up has been developed to characterize high frequency
medical ultrasound transducers using a pulse echo set-up. This work is a continuation of an …

Les tècniques acústiques s' han convertit en les últimes dècades en les ferramentes més
apropiades per a l'estimació de biomassa en el sector pesquer. Això és degut a que les …

Vesicoureteral reflux (VUR) is an abnormality that causes urine to flow back from the bladder
to the kidneys, which may cause renal scarring and kidney damage. A non-ionizing and non …

Measurements of the pressure distributions differences of the ultrasonic fields at different
zones of the test object can be provided in order to estimate the dimensions of the defects …

This paper describes step-by-step development of a custom-made measurement system
and also provides an assessment of the reliability of the set-up. The angular distribution of …