Hi
I've got a question concerning an ECG measurement I did at a laboratory lesson recently. The amplifier was a 3-OP circuit with two adjustable potentiometers. We were to adjust those to get a minimal common mode signal at two different frequencies (100 Hz and 1kHz). What I can't understand is why you have to do this att two frequencies?
I've got a question concerning an ECG measurement I did at a laboratory lesson recently. The amplifier was a 3-OP circuit with two adjustable potentiometers. We were to adjust those to get a minimal common mode signal at two different frequencies (100 Hz and 1kHz). What I can't understand is why you have to do this att two frequencies?