Model DC Motor: Torque, EMF, Resistance & Regulation

[bbq_build]

Hello, I want to model a DC motor which I bought from a company. I only have the following information:

torque constant [M.N.M./Amp],
EMF constant [MV/RAD/SEC],
Dynamic Resistance [OHMS] and
Motor Regulation [RPM./M.N.M.].

The company does not provide the moment of inertia nor elect/mech time constant. As far as I know, I need all these three pieces of information in order to model the motor. Am I right? Is there a way to do it without the missing information?

 

[Dr.D]

You should be able to measure the MMOI if you are willing to make some measurements.

 

[bbq_build]

You should be able to measure the MMOI if you are willing to make some measurements.

Hi Dr.D, which method do you recommend?