Absolute rotary encoders use optical, mechanical, or magnetic indexing for angular measurement.

Linear encoders sense and digitize linear position change for positional measurement and feedback to control systems

Incremental rotary encoders are multi-turn sensors that use optical, mechanical, or magnetic index-counting for angular measurement.

Linear position sensors, all types, is a general search form for all linear position / displacement detection product areas.

Rotary encoder disks are round or disk-shaped and have evenly-spaced holes or markings around their perimeter

Encoder and resolver signal conditioners accept encoder and resolver measurements and convert or condition these signals into digital data or suitable levels.

Digital encoders convert coded information into a familiar or uncoded format