To mitigate this problem, some motors and speed controllers have been designed especially to drive a load at low speeds with precise control. Most domestic and industrial motor applications use 3 ...

I was still not able to drive the motor into instability with the ‘IR’ control, wherever it was set, but will try operating the mill for a while to see of there is significant speed droop before the ...

When used to measure something like a motor shaft, one can also estimate rotation speed. Count how many steps come from the encoder over a period of time, and use that as the basis to calculate ...