Characterization of output signal from hollow cylindrical cavitation sensor

Abstract

We have investigated a method for quantitatively measuring acoustic cavitation. In this paper, the characteristics of BIV calculated from the high-frequency components (in the megahertz frequency range) of the output voltage of a hollow cylindrical cavitation sensor were investigated. The results revealed that BIV was dependent on the DO level. In addition, a strong correlation was found between BIV and the sonochemical luminescence. This indicates that BIV has the potential to be used as an index of the amount of acoustic cavitation generated. In the future, we intend to perform a detailed investigation of the relationship between BIV and active oxygen species in detail. Also, we hope to investigate the ultrasound systems such as ultrasonic cleaning systems by using this BIV method. © 2010 The Acoustical Society of Japan.