People - Hannah - New Birkin group research web pages

‘We are all in the gutter, but some of us are looking at the stars.’
 
Oscar Wilde
Lady Windermere’s Fan
1892
 
Birkin Research Group
Particles, bubbles and sound, at the interface.
Northern Lights
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Hannah Martin - PhD Student

"Using a High-Speed AC Impedance Technique to Monitor Cavitation Bubble Activity in a Cylindrical Resonance Cell"

Acoustic cavitation has been shown to have a number of beneficial applications, from the enhancement of chemical kinetics to cleaning of structured surfaces. In my project, cavitation is generated at regions of high acoustic pressure in a cylindrical chamber. The bubbles generated by cavitation are monitored electrochemically using a high-speed AC impedance technique which allows uncompensated resistance and capacitance changes to be recorded with a resolution up to 2 µs.  These new techniques are used to detect bubbles on flat surfaces and within pores.  In addition the resonant properties of an acoustic chamber are investigated using these new techniques in combination with more standard experimental techniques.

Personal Interests
https://suso.susu.org/
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