The interaction between ultrasonic waves and biological tissues is the cause of cavitation phenomena. A primary scope of this paper was to set-up a measurement system for the generation of cavitation by means of forcing a low frequency (20 kHz). From the spectra and power density was evident the presence of the random component associated to the noise of cavitation was evident. For the estimate of this component the technique ARMA spectral was particularly effective. The average lifetime of transient cavitation bubbles estimated from the time constant via the ARMA spectrum, was found to be in agreement with the data in the literature. Copyright © (2012) by the International Measurement Federation (IMEKO).
Lifetime of cavitation bubbles in high intensity ultrasonic bioprocessor / Marinozzi, Franco; Bini, Fabiano; Novelli, S.. - ELETTRONICO. - 2:(2012), pp. 1431-1435. (Intervento presentato al convegno 20th IMEKO World Congress 2012 tenutosi a Busan nel 9 September 2012 through 14 September 2012).
Lifetime of cavitation bubbles in high intensity ultrasonic bioprocessor
MARINOZZI, Franco;BINI, FABIANO;S. Novelli
2012
Abstract
The interaction between ultrasonic waves and biological tissues is the cause of cavitation phenomena. A primary scope of this paper was to set-up a measurement system for the generation of cavitation by means of forcing a low frequency (20 kHz). From the spectra and power density was evident the presence of the random component associated to the noise of cavitation was evident. For the estimate of this component the technique ARMA spectral was particularly effective. The average lifetime of transient cavitation bubbles estimated from the time constant via the ARMA spectrum, was found to be in agreement with the data in the literature. Copyright © (2012) by the International Measurement Federation (IMEKO).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
