I use a critically damped analog microammeter to monitor the electrolysis current, and a rheostat set to match the (initial) interelectrode resistance to limit the current. I notice that when shut off the current at the end of a brewing cycle and turn it on again, the current reading bounces around for many cycles. My microammeter oscillates at a rate of roughly 2 hertz.
Investigators of electrolysis in corrosion phenomena sometimes make use of the noise in electrolysis current, to extract more information about what's happening at the electrodes' surfaces. Has anybody tried using headphones, or earphones to listen to the EIS as it is being generated? Thanks in advance for your input! Matthew
