Encoder zero signal coding design and verification method based on Excel program

Abstract

The invention discloses an encoder zero signal coding design and verification method based on an Excel program, and the method comprises the steps: building a verification scene for simulating a photoelectric cell circuit to output a pulse signal based on an Excel table, depicting a group of same codes on a dynamic grating and a static grating of an encoder, converting the codes into binary codes, inputting the binary code into a code input area in a table, wherein the table is also provided with a dynamic coding comparison area, and the number of overlapped transparent windows 1 calculated by adopting an FLOOR function when a coding string in each row in the dynamic coding comparison area is compared with a binary code is recorded as G; and generating a light intensity change diagram in the table, and judging whether the encoding of the encoder meets the design requirement or not according to the light intensity change diagram. The design and verification method is simple and effective, pulse signal characteristics generated by codes printed according to binary codes can be quickly simulated and obtained on the basis of the light intensity change diagram made by an Excel program, and the method has great significance in design of ultrahigh-resolution dynamic gratings and static gratings.

Description

technical field [0001] The invention relates to the technical field of encoders, in particular to an Excel program-based encoding design and verification method for an encoder zero-position signal. Background technique [0002] The encoder is divided according to the signal principle, which can be divided into absolute encoder (APC) and incremental encoder (SPC). As the name implies, the absolute encoder can record the position of the encoder on an absolute coordinate system, while the incremental Type encoders can output incremental changes in the encoder from a predefined starting position. [0003] The actual incremental encoder will output three groups of square wave pulses A, B and Z phase, such as figure 1 As shown, the phase difference between the two groups of pulses of phase A and phase B The direction of rotation and the speed of rotation can be judged. When the encoder shaft outputs n pulse signals every revolution, the period of the signal is T, and the Z-phas...

AI Technical Summary

Problems solved by technology

[0004] At present, the manual drawing method is used to verify whether the selected code meets the design requirements step by step. However, there are millions of different combinations in theory for an N-length binary code. If you want to verify each combination , which is a huge amount of engineering, and the verification process will be very difficult, which will not guarantee the stability and reliability of the encoder output zero signal

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