NPN outer diameter 18mm mini rotary encoder solid shaft 2.5mm 60ppr 3.3Vdc
1,Working principle:
By a central shaft of the photoelectric code disk, which has a ring through, dark inscription, there are photoelectric transmitting and receiving devices read, to obtain four groups of sine wave signals combined into A, B, C, D, each sine wave difference of 90 degrees phase difference (relative to a circumferential wave for 360 degrees), the C, D signal reverse, superimposed on the A, B two phases, can enhance the stability of the signal; the other each turn output a Z-phase pulse to represent the zero position reference position.
Since the phase difference between A and B is 90 degrees, it is possible to distinguish the forward and reverse rotation of the encoder by comparing whether phase A is in front or phase B is in front, and the zero reference position of the encoder can be obtained by the zero pulse.
1. Feature: Mini incremental encoder, hollow shaft, easy to install
2. Application: Subminiature motor, small instrument for automation control.
3. Important parameters: 18mm external dia, thickness 15.3mm, hollow/blind shaft 2.5mm, resolution max 1600 ppr, supply voltage DC5V; DC8-30V, protection grade IP50, cable length 150mm