Incremental encoder

Dear all

I am recently involved to construct a control device for an actuator in a strong magnetic enviorment.

For the sensing of the movements I hope to use an incremental encoder for the job. however, when i wanted more information on it, i can only find some brief description on it in some mechatronics book.

I wanted some reference on this topic on the most up to date methods, as i understand there are several ways to aling the grid or sensors which gives slightly different characteristic.
Any help on this it would be very very much appreciated.

Thanks so much
wil :lol: