I have a circuit with a piezoelectric transducer which converts mechanical energy to electrical. The ceramic is connected to a 1 Megaohm resistor and a voltmeter which reads voltage.
If I want to determine the power generated, do I just use P=V^2/R? And if so, how do I account for fluctuating voltage values? For example: I have the actual values of the voltages on a separate data table. How do I determine total power generated if voltage values are not the same? Do I do summation of power? Essentially, which voltage values do I choose to determine power?
Thank you very much! I appreciate it!