A free-flooding acoustical resonator for measurement of bubble size distributions

From: Journal of Atmospheric and Oceanic Technology | Date: October 1, 1998| Author: | Copyright information

(Manuscript received 28 January 1997, in final form 11 October 1997)

ABSTRACT

An instrument for the measurement of bubble size distributions is described. The sensing element exploits the free-flooding resonator design of Medwin with modifications to overcome the limitations in the original implementation, especially those due to a sensitivity to ambient pressure fluctuations in the surrounding medium. A mathematical model of the resonator provides insight into the factors affecting its performance and motivates application of appropriate signal processing algorithms. Comparison of ...

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