Comparison of the Spatial Distributions of Cavitation Damage with the Measured Diffraction Patterns for a High-Power Ultrasonic Transducer

Rogers, Davis Lane (2015) Comparison of the Spatial Distributions of Cavitation Damage with the Measured Diffraction Patterns for a High-Power Ultrasonic Transducer. Undergraduate thesis, under the direction of Joel Mobley from Physics, The University of Mississippi.

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Abstract

The purpose of this study was to evaluate the performance of a model of the propagation of ultrasonic fields produced by an ultrasonic transducer, a device that uses a piezoelectric crystal to produce high-intensity ultrasonic waves. The transducer operates immersed in a water bath where it generates waves of sufficient intensity to produce non-linear phenomena that include acoustic streaming and cavitation. This study used a planar transducer to visualize the damaging effects of high-intensity ultrasonic waves targeted on acrylic plates. Seven plates were targeted and positioned from 8.5 to 11.5 cm from the transducer. The spatial distribution and degree of damage in the plates were compared to detailed measurement and numerical models of the field produced by this transducer under lower power operating conditions. The amount of damage to the acrylic plates depended on the distances of the transducer from the plate. The spatial distributions of the damage on the plates matched well with the measurements from the numerical model predictions.

Item Type: Thesis (Undergraduate)
Creators: Rogers, Davis Lane
Student's Degree Program(s): B.S. in Physics
Thesis Advisor: Joel Mobley
Thesis Advisor's Department: Physics
Institution: The University of Mississippi
Subjects: Q Science > QC Physics
Depositing User: Davis Rogers
Date Deposited: 12 May 2015 17:44
Last Modified: 12 May 2015 17:44
URI: http://thesis.honors.olemiss.edu/id/eprint/431

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