Servo PITTMAN 9413D319 HOW can get experimentally motor parameter ….?

Hi:

Thanks for your info

I�m designing a PID for a servo that I�ve got from a garage sales.

PITTMAN 9413d319,,,,3140-0665 REV. H,,,,19.1 VDC

For modeling the motor I need to get the parameters of the motor
followings:

* moment of inertia of the rotor (J) = X.... kg.m^2/s^2�.?
* damping ratio of the mechanical system (b) = X... Nms�.?
* electromotive force constant (K=Ke=Kt) = X ...Nm/Amp�.?



I visited Pittman 's Web Site (data sheet not abailable), I checked
HEDS-9000 (encoder HP), theory books�empty



So, if you can give an idea how can I get experimentally the parameters? I
would appreciate your help.



God bless you



Cesar Paredes

Lima Peru


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