Re: DC motor modeling

Can anybody help me in defining the transfer function(s, z) of a DC motor?
> I'm not referreing to a general FT(available in control books) but a the FT
> of a real motor I have.
Basic Motor is KV = omega + omega dot * Tau
in S notation X = 1
---- ----------------
Y 1 + ST
Z transform is ! + e^-aT
a(z - e^-aT)
T is Time constant of Motor (67% rise time with step input)
V = Volts
K proportionality constant
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