In principal, any repetitive waveform's frequency can be calculated, in practice using an oscilloscope on an ECG simulator would be a non starter unless you interface using a differential amp (not cheap) to convert a three terminal input (R L F etc. ECG waveform) to a two terminal device (BNC input oscilloscope)..
The frequency counter option would similarly have difficulty.
It would be nice if there was a affordable reliable alternative.
Has anyone any thoughts on a similar viewpoint ?
Sean Fearon
