Hi measuring Bode diagram of low-quality DC-motors is hard (voltage in -angle out) because
the "zero"-position is drifting away.
This is due to unwanted offset in the signalgenerator and/or nonlinearities in
the DC-motor.
I've done a vi that detects a dc-offset in a signal and generates a "counter" DC-offset to compensate for it.
Now I need to use signal express to generate x number of signals consecutively, with increasing frequency, specified by the user,
While outputting each signal, it should be possible to add the counter-DC-offset.
When DC-drift is compensated, that is no DC component from the rotorangle-measuring-transducer,
SignalExpress should calculate and plot corresponding gain and phase shift in a Bodediagram.
This should repeat itself until all frequencies are measured are run and gain and phase shift is plotted in the same single diagram
Kindest regards,
laskar01
