Calculate Time Constant of Discrete or Continuous Transfer Function
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Is there a function to provide the value of the time constant of a Continuous or Discrete time transfer function? I mean, I know how to calculate it by hand, but it seems this is so fundamental, I should find a function like tau = TimeConstant(G(s),'step')... Or it should be an output of stepinfo...
Seems such a basic thing in controls, or maybe it's so trivial, no one feels the need for it? Perhaps my google-fu is just really weak tonight?
Thanks for any feedback.
Edit: I should clarify that at this point, I'm just looking at 1st or 2nd order systems.
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Birdman
2017 年 10 月 24 日
Try this function. It takes a first order continuous transfer function as an input and outputs the time constant of it. Hope it helps.
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Matheus WV
2020 年 2 月 19 日
There was an error in your function: "den" was changed before it was used in the "num" calculation, so "num" would remain the same, as den(len) equals 1.
Here the corrected version.
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