Multiturn Absolute Encoder
Multiturn absolute encoder measures range over 360 degree. Three ways can realize the multi-turn measurement. One is by mechanical gear ring theory. Multiple gears(discs) are used to enlarge the measuring range. Secondly, adopting battery to supply the power for long time. Third， a new type of working principle is adopted. When power off, the data can be storage to the IC and encoders can still rotary 120 degree.