Electronic zeroing method for photoelectric rotary encoder

Abstract

The invention relates to an electronic zero adjust method of optical-electricity shaft encoder in the field of optical-electricity measuring. First designing a electronic zero adjust circuit which comprises a memory storage device, a reset switch, a upper-pulling resistance and a signal chip computer, wherein the memory storage device possesses chip choosing end CS, clock interface SK, writing end DI and output end DO; one end of the reset switch is connected with the earth, the other end is connected with the P1 port; the upper-pulling resistance is positioned on the P1 port, the other end of the upper-pulling resistance is connected with the 5V power; the signal chip machine possesses input / output (I / O) interface P1 to P5, P1 is connected with the resistance end of the reset switch; P2 to P5 are separately connected with the chip choosing end CS, the clock interface SK, the writing end DI and the output end DO; second controlling the electronic zero adjust circuit by the preset electronic zero adjust program to achieve the clear impact.

Description

1. Technical field [0001] The invention belongs to the technical field of photoelectric measurement and relates to an electronic zeroing method of a photoelectric shaft angle encoder. 2. Technical background [0002] The photoelectric shaft encoder is a representative photoelectric sensor device for photoelectric measurement of angular displacement. When the photoelectric shaft encoder is used for measurement, there are often differences between the zero position of the code disc of the photoelectric shaft encoder and the zero point position of the rotating shaft of the measurement system. There is an angle deviation phenomenon in the misalignment, which leads to inaccurate measured angular displacement of the rotating shaft of the measurement system, making the measurement accuracy meaningless. Therefore, when using a photoelectric shaft-angle encoder to measure the angular displacement of the rotating shaft, it is necessary to first align the zero position of the code disc...

AI Technical Summary

Problems solved by technology

[0004] The structure of the circuit is complex, as many bits as there are encoders, there are as many dial switches and upper resistors as there are. Manual operation is cumbersome, time-consuming, easy to pull wrongly, and zero adjustment is inconvenient.

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