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High-response high-resolution absolute value encoder with dual encoding systems

An absolute encoder, high-resolution technology, applied in the encoder field, can solve the problems of inability to meet the resolution application requirements, huge data volume, complex system, etc., to improve reliability, high resolution, and small size. Effect

Inactive Publication Date: 2018-08-21
何锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the huge amount of computing data and the complex system, the current absolute encoder has a slow response during high-speed operation, which still cannot meet the application requirements of higher and higher resolution under high-speed operation.

Method used

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  • High-response high-resolution absolute value encoder with dual encoding systems
  • High-response high-resolution absolute value encoder with dual encoding systems
  • High-response high-resolution absolute value encoder with dual encoding systems

Examples

Experimental program
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Embodiment Construction

[0023] Such as figure 1 , 2 As shown, the encoder is mainly composed of a code disc 1, a CCD image sensor 2, a CCD image sensor mounting seat 3, a reflective sensor 4, a reflective sensor seat 5, a fixed bracket 6, an output shaft 7, and an output shaft bearing 8. The code disc 1 is provided with a central hole 11 and a positioning hole 12 with precise dimensions. The code disc 1 is positioned and fixed with the output shaft 7 through the central hole 11 and the positioning hole 12. The output shaft 7 is closely matched with the inner ring of the output shaft bearing 8, and the output The outer ring of the shaft bearing 8 is closely matched with the fixed bracket 6, the CCD image sensor 2 is fixed with the fixed bracket 6 through the CCD image sensor mount 3, and the reflective sensor 4 is fixed with the fixed bracket 6 through the reflective sensor mount 5. Such as image 3 As shown, there are mainly three groups of engraved tracks on the code wheel 1 , which are the outer ...

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Abstract

The invention discloses a high-response high-resolution absolute value encoder with dual encoding systems, which comprises an absolute encoding system and an incremental encoding system, wherein the absolute encoding system is formed by an external double gradient spiral channel group and an internal double gradient spiral channel group of a coded disc, a CCD image sensor and a CCD image sensor mounting base, the incremental encoding system is formed by an equally spaced stripe channel group of the coded disc, a reflective sensor and a reflective sensor base; the coded disc is provided with acenter hole and a positioning hole, the coded disc is positioned and fixed with an output shaft through the center hole and the positioning hole, the output shaft is tightly matched with an inner ringof an output shaft bearing, an outer ring of the output shaft bearing is tightly matched with a fixed support, the CCD image sensor is fixed with the fixed support through the CCD image sensor mounting base, and the reflective sensor is fixed with the fixed support through the reflective sensor mounting base. The absolute value encoder disclosed by the invention solves a problem that the traditional encoder needs a reset operation or is low in response speed in the case of high resolution and the like, and has the advantages of high speed, high resolution, high reliability and the like.

Description

technical field [0001] The invention relates to the technical field of encoders, in particular to a high-response and high-resolution double-encoding system absolute value encoder. Background technique [0002] At present, the types of encoders on the market are mainly divided into two categories: incremental encoders and absolute encoders. [0003] The position of the incremental encoder is determined by the number of pulses counted from the zero mark. Its advantage is that it has high resolution and high precision while it is running. It can also have a fast response speed, but its disadvantage is that each time It is necessary to find the zero mark when starting up, so the machine must have a reset action. [0004] The position of the absolute encoder is determined by the reading of the output code. The reading of the output code at each position is unique within a revolution. Therefore, the absolute encoder is not separated from the actual position when the power is t...

Claims

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Application Information

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IPC IPC(8): G01D5/347
CPCG01D5/34707
Inventor 何锋
Owner 何锋
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