real time logging of events

[EDA_hg81]

I am confused with the following questions: design a real time logging of events based on the teeth of a spinning gear being monitored by a hall-effect sensor with respectn to an encoder tied to the shaft of the gear.

What they want, please gave me some clues

thanks.

 

[IanP]

.. design a real time logging of events based on the teeth of a spinning gear being monitored by a hall-effect sensor with respectn to an encoder tied to the shaft of the gear.

Most likely you will have to count teeth of a spinning gear with a hall-effect sensor, convert this count to RPM or speed and record it every second, minute ..
The same you will have to do with pulses from two-wave shaft encoder but because shaft encoders also give you information about direction (waves are shifted by 90°) you will have to record RPM (or speed) and direction of rotation ..

Regards,
IanP