Method for realizing high-resolution incremental bus-based optical-electricity encoder
A photoelectric encoder, high-resolution technology, applied in the direction of using optical devices to transmit sensing components, can solve the problems of low precision, high cost, strict mechanical requirements, etc., and achieve high production efficiency, low manufacturing cost, and simple assembly. Effect
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[0037] It includes the following steps:
[0038] The light-emitting system outputs A, B, Z square wave digital signals through the slits on the grating disc, and simultaneously outputs differential analog signals a, / a, b, / b, and electrode control signals U, V, W;
[0039] Received by the photoelectric receiving system,
[0040] The analog signals a, / a, b, / b are processed by the analog signal processor and output two differential analog signals Va x , Vb x To the microprocessor MCU,
[0041] The photoelectric receiving system outputs A, B, Z square wave digital signals and electrode control signals U, V, W to the microprocessor MCU;
[0042] Microprocessor MCU subdivision method: the two differential analog signals Va x , Vb x Input to the microprocessor MCU, the processor's internal analog-to-digital converter AD converts the analog signal into a digital signal, and the two-way converted digital signal is subdivided precisely through the CORDIC algorithm. The vector V 1 Get a new ve...
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