Identification of cavitation signatures using both optical and PZT acoustic sensors

M. Vidakovic; I. Armakolas; T. Sun; J. Carlton; K. T. V. Grattan

doi:10.1117/12.2194614

28 September 2015 Identification of cavitation signatures using both optical and PZT acoustic sensors

M. Vidakovic, I. Armakolas, T. Sun, J. Carlton, K. T. V. Grattan

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963465 (2015) https://doi.org/10.1117/12.2194614
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

This paper presents the results obtained from monitoring a simulated material cavitation process using both a fibre Bragg grating (FBG)-based acoustic sensor system developed at City University London and a commercial PZT (Piezoelectric Transducer) acoustic sensor, with an aim to identify the cavitation signatures. In the experiment, a sample metal plate with its back surface being instrumented with both sensors is positioned very close to an excitation sonotrode with a standard frequency of 19.5kHz. The data obtained from both sensors are recorded and analyzed, showing a very good agreement.

Citation Download Citation

M. Vidakovic, I. Armakolas, T. Sun, J. Carlton, and K. T. V. Grattan "Identification of cavitation signatures using both optical and PZT acoustic sensors", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963465 (28 September 2015); https://doi.org/10.1117/12.2194614

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