What is the theory of incremental encoder！

Incremental encoder is named their output by two square waves, each corresponding to an incremental rotation. Typically, the LED indicates a parallel light beam is irradiated through a lens that is focused; grid beam passes through the membrane, so that it will be the second beam of light generated by the phase difference of 90 °. Light through the disc to the PV array or a photodiode from A, B channel passes. Light and dark to create the disc rotation through a transparent and opaque disc segment model.
This pattern is read by a photodiode array and decoding circuit processes; beams A and B, respectively, are received by a single diode and converted into two square wave signals ... 90 ° phase difference, commonly known as quadrature output. It is then fed into a processor may process the signal to determine the number of pulses, direction, speed, and other information. Incremental encoders may also have been used as the reference zero or home single slot or segment of a third channel. In addition, an incremental quadrature encoder generates sine wave sine wave (sine and cosine), rather than a square orthogonal. Arc tangent function Resolution yield any level.

Cross refence Model：

TRD-GK1800-RZC2L
TRD-GK1800-RZL
TRD-GK2000-BZ
TRD-GK2000-BZC2
TRD-GK2000-RZ
TRD-GK2000-RZC2
TRD-GK2000-RZC2L
TRD-GK2000-RZL
TRD-GK200-BZ
TRD-GK200-BZC2
TRD-GK200-RZ
TRD-GK200-RZC2
TRD-GK200-RZC2L
TRD-GK200-RZL
TRD-GK240-BZ
TRD-GK240-RZ
TRD-GK240-RZC2
TRD-GK240-RZC2L
TRD-GK240-RZL

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