The profile of incremental encoder.！

Incremental encoder, also known as incremental encoder, incremental encoder, which is a signal generated according to the rotation of the encoder, the scale for each pulse increments are calculated. Incremental encoders are often used with mechanical transducers (such as rack-and-pinion, measuring wheels, or mandrels) to measure linear motion. Incremental encoders are often used for position control and speed feedback of motors, including servo, industrial or heavy duty applications. It can provide excellent speed and position feedback, the system architecture is simple and low cost. Since incremental encoders only provide position-varying signals, a reference point is typically required in a practical application to establish the current system zero.

Incremental encoder structure and working principle

Incremental encoders can output a specific number of pulses in one revolution. The output signal may be a single A signal or a dual AB signal, and the direction of rotation may be detected by the phase difference. This AB signal is called the quadrature signal. Incremental encoders are mainly composed of shafts, PCBs and enclosures. PCB contains sensors and signal processing circuit used to generate two main AB signal. In addition to this, it is possible to provide a zigzag signal which is generated once for the detection of the origin or the correction of the AB signal.

Incremental photoelectric encoder mainly by the light source, code disc, detection grating, photoelectric detection devices and conversion circuit

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