stockmann-lab / shim_amp_hardware_linear

Hardware related to open-source shim amplifier development for MRI research
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Compensation calculator script sometimes shows blank step response #11

Open dcstraney opened 1 year ago

dcstraney commented 1 year ago

Sometimes the Octave/MATLAB step response calculator script, when plotting the step response graphically, shows an all-zero (flat) step response with the LPF enabled. This seems to happen with small coil inductances. Likely a bug in the control package; is it something about the number of poles?

Need to update control package and re-test, as latest version is new 2023-07-10: https://gnu-octave.github.io/packages/control/ https://github.com/gnu-octave/pkg-control/blob/main/NEWS