Hello @sbambot,
It would be useful to explore alternatives.
To understand why, consider the situation when the system is not moving - let’s assume a mechanical brake has been applied.
Next consider what happens when one of the sensors is just on the edge and toggle. Without proper attention, this motionless system will be perceived as moving. The result is a loss in encoder position with potentially poor results. For example, if this was a 3D printer there would be a defect in the associated layer.
As a starting point please consider this article. As I recall, the system was able to keep up with 11 k cycles per second motor. It may be able to handle your 50 k requirement. You will quickly know, as the software includes a fault detecting FSM.
Please tell us more about your application so we can find the optimal solution. Know that there are many high-performance solutions available.
Best wishes,
APDahlen