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Multi-group vernier code disc, photoelectric encoder and light source position resolving method

A photoelectric encoder and vernier code technology, applied in the field of encoders, can solve problems such as absolute position calculation errors

Pending Publication Date: 2022-04-15
SUZHOU INOVANCE CONTROL TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a multi-group vernier code wheel, a photoelectric encoder and a method for calculating the position of the light source, aiming at solving the problem of the optical encoder with high physical resolution in the prior art when calculating the position of the light source on the code wheel. , there is a technical problem of absolute position calculation error

Method used

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  • Multi-group vernier code disc, photoelectric encoder and light source position resolving method
  • Multi-group vernier code disc, photoelectric encoder and light source position resolving method
  • Multi-group vernier code disc, photoelectric encoder and light source position resolving method

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Embodiment Construction

[0043] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0045] refer to figure 1 , figure 1 It is a schematic diagram of the structure of the second electrode layer in the first embodiment of the multi-group vernier code wheel of the present invention.

[0046] In this embodiment, the multiple sets of vernier code discs include: a vernier ring with the rotation center of the multiple sets of vernier code discs as the center, and the vernier ring includes a plurality of end-to-end connected vernier groups 10;

[0047] The identification code track 20 having the same number as the vernier group is arranged inside and / or outside the ring of the vernier ring, and there is a ...

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Abstract

The invention discloses a multi-group vernier code disc, a photoelectric encoder and a light source position resolving method, and the multi-group vernier code disc comprises a vernier circular ring which takes the rotation center of the multi-group vernier code disc as the circle center, and the vernier circular ring comprises a plurality of vernier groups which are connected end to end; identification code channels with the same number as the vernier groups are arranged inside and / or outside the vernier circular ring, a first phase difference exists between starting ends of the identification code channels, and a second phase difference exists between the starting end of each identification code channel and the starting end of the corresponding vernier group. According to the method, the number of the vernier groups is increased, the identification code channels are arranged, the initial positions of the light sources on the vernier groups are determined through the vernier groups, and then the target positions of the light sources on the coded disc are determined according to the identification code channels and the initial positions, so that the accurate positions of the light sources on the multi-group vernier coded disc can be more accurately settled.

Description

technical field [0001] The invention relates to the technical field of encoders, in particular to a multi-set vernier code disc, a photoelectric encoder and a method for calculating the position of a light source. Background technique [0002] With the rapid development of industrial control technology and the continuous advancement of manufacturing industry upgrading, it provides a huge market for the development of the servo industry. As a feedback device in the servo system, the encoder effectively improves its working accuracy. The absolute rotary encoder, because of its absolute uniqueness and anti-interference in each position, has been more and more widely used in angle, length measurement and positioning control in various industrial systems. Along with the demand for high-precision machining, significant technical requirements are placed on the effective resolution of the encoder. [0003] A general photoelectric encoder only depicts a set of vernier code tracks o...

Claims

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Application Information

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IPC IPC(8): G01D5/347
CPCG01D5/34794G01D5/3473
Inventor 周凯
Owner SUZHOU INOVANCE CONTROL TECH CO LTD
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