O3.4 - Optical Incremental Rotary Encoder in Low Cost Design

D. Hopp, C. Pruss, W. Osten, J. Seybold, V. Mayer & H. Kueck
Rotary encoders are used for angular measurements in numerous applications like rotating machin parts, electrical motors or for example to detect the steering angle in cars. There are differed encoding principles available such as potentiometric, capacitive, inductive or optical, with the optic systems reaching the highest angular accuracy. As a disadvantage the resolution enhancement of optic encoder systems is associated with increasing cost. Considering the need for competitive sensors, we have developed a new concept...