Does  incremental grating Z signal can be index signal? How to select the circle grating encoder?

Both linear grating and its Z shaft encoder signal can be achieved with A \ \ \ \ \ \ \ \ B the accuracy of the signal is the same, only the shaft encoder is A circle one, at regular intervals and linear grating is A, use this signal can achieve very high repeat precision. Can use first at the beginning of ordinary proximity switch positioning, and then find the closest Z signal (same direction to find) at a time, don't forget to dispatch its phase at loading and grating phase, otherwise not.

According to the requirements of the you segmentation accuracy and resolution. High precision nature should choose line every week, accuracy is not high, it is not necessary to choose the number of contour lines of circular grating encoder.