1.Measuring length or Angle measurement, how to measure the length of the mechanical way transformation, measuring Angle is single or double singles.Production process is a direction of rotation cycle to work, or work direction cycle back and forth.

2. The form of connection of shaft, a shaft through flexible coupling, or shaft sleeve type links.
3. The use of the environment: dust, moisture, shock, impact

(二) electric parts of absolute encoder

1. Connect the output of the receiving part is
2. Signal form
3. The resolution requirements
4. The control requirements