Investigation of Output Signal from Cavitation Sensor by Dissolved Oxygen Level and Sonochemical Luminescence

We investigated the relationships between the broadband integrated voltage (BIV) calculated from the high-frequency components of broadband noise produced by acoustic cavitation in an output signal, the dissolved oxygen (DO) level which is one of generation conditions for cavitation, and sonochemical luminescence which is a chemical reaction induced by cavitation. As a result, BIV was changed by the DO level in distilled water. Also, a correlation was found between BIV and sonochemical luminescence. This indicated that BIV has the potential to be used as an index of the amount of generated cavitation.