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- Changchun Rongde Optics
- Co.,Ltd.
- Add：No.1666 Yaan Road,
- North Lake Development District,
- Changchun 130102,China
- Tel：86-431-81881745
- Fax：86-0431-85256892
- E-mail：rongdecui@roundss.net
- Skype：adacui_roundss
The principle of rotary encoder！
Changchun Rongde Optics Co.,Ltd. Release time：2016/11/1 Browse：718A four-phase sine wave signal is combined into A, B, C, D, and each sine wave is composed of a center-axis optical encoder disk, on which there are circular through and dark scribe lines, and photoelectric transmitting and receiving devices are read. Phase difference of 90 degrees (360 degrees relative to a cycle), the C, D signal reverse, superimposed on the A, B two-phase, can enhance the stability of the signal; the other per revolution to output a Z-phase pulse to represent zero reference Bit.
Because A, B two-phase difference of 90 degrees, can be compared by A-phase or B-phase before the former to determine the encoder forward and reverse, through the zero-bit pulse, the encoder can be zero reference bit.
Because A, B two-phase difference of 90 degrees, can be compared by A-phase or B-phase before the former to determine the encoder forward and reverse, through the zero-bit pulse, the encoder can be zero reference bit.
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