The Connection Between Single Chip Microcomputer and Incremental Rotary Encoder！

The Connection Between Single Chip Microcomputer and Incremental Rotary Encoder

Incremental rotary encoders increase the angular displacement of the angle encoder (positive direction) or decrease (negative direction) by changing the timing and phase relationship of the angle code discs by the two inner photosensitive receivers. Incremental rotary encoders are cheaper and easier to use in angle measurement and angular velocity measurement than absolute rotary encoders after bonding digital circuits, especially single-chip microcontrollers.

   A, B two points corresponding to the two photosensitive receiver, A, B two-point pitch S2, the angle of the grating disk spacing S0 and S1, respectively.

S0: S1: S2 ratio is the same as the S0: S1: S2 ratio of the actual graph. If the disc is rotated at the same speed at other speed, The S0: S1: S2 ratio in the output waveform diagram remains the same as the S0: S1: S2 ratio of the actual graph. If the angle encoder does a variable-speed motion and sees it as a combination of multiple motion periods (defined below), then the ratio of S0: S1: S2 in the output waveforms to the S0: S1: S2 Ratio remains the same.

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