Hall Velocity Encoder Motor

Encoder board specification
one. Board size: 26*22*1.2mm

two. Terminal pin definition:
     G: hall electricity negative
     H1: hall H1 output signal, square wave
     H2: corridor H2 output signal, sq. wave
     V: corridor electrical power constructive
     M+: motor positive pole
     M-: motor damaging pole

Remark: 
one. The voltage amongst V-G is established according to the power provide voltage of the solitary chip microcomputer used, typically 3.3V or 5V is utilised.
2. The frequency of the output square wave of H1 and H2 and the speed of the motor are related to the quantity of poles of the utilized magnetic disk.
three. The voltage between M+ and M- is established according to the motor voltage utilised.

3. Basic principle
3.one Motor speed measurement: The Hall sensor can sense the N and S poles of the magnetic plate. We use the Hall of the S pole to feeling that when every single Corridor sensor senses the S of the magnetic plate, the Corridor output will output a higher degree When the N pole of the magnetic plate, the Hall output will output a reduced amount. When the motor rotates repeatedly, a sq. wave is output at the Hall output. The pace of the motor can be acknowledged based mostly on the time period T of the output sq. wave. Assuming that the magnetic disk we use is the P-polarity, the calculated square-wave time period is T.  Measure motor velocity: n=sixty/PT.
3.two Motor reversal measurement: Two Corridor sensors are positioned in two distinct positions in the circuit. When the motor turns otherwise, the two Corridor outputs have different square waves.

When the motor rotates CZPT,  H1 detects the growing edge, H2 enters the falling edge when the motor reverses, H1 detects the slipping edge, H2 is also the falling edge.