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Is transfer Function of a mathematical system unique?

  1. Aug 20, 2014 #1
    I have gone through a mathematical modelling of a mass spring dashpot system in which if substitute differently we get different transfer functions. How does this really happen as we say Transfer function of a sytem is unique.
  2. jcsd
  3. Aug 21, 2014 #2


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    Gold Member

    Need more info. Not sure what you mean by " which if substitute differently".

    Changing any parameters will change the transfer function. Mass, spring characteristes, etc.
  4. Aug 21, 2014 #3


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    Science Advisor

    Changing any of the physical parameters of the system will change only the coefficients of the transfer function; the mathematical form of the transfer function will stay the same.
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