Hi, iam using 131:1 Metal Gearmotor 37Dx73L mm with 64 CPR Encoder, the motor parameter are given ,i want to find the physical parameters, could you please check the Validity
The electrical resistance of the motor can be approximated by dividing the rated voltage by the stall current
The electromotive force constant (Ke) can be approximated by dividing the rated voltage by the free-run speed (at the rated voltage).
Here 80 RPM(8.3775rad/s) which is the shaft speed, so before the gearbox 8.3775*131.25=1099.58rad/s
To approximate the motor torque constant (Kt), you can divide the stall torque by the stall current. Here maximum torque can be taken as 1.765(NM stall torque)/131.25=0.01345Nm