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Photoelectric encoder and moving grating

A photoelectric encoder and moving grating technology, applied in the direction of instruments, conversion sensor output, measuring devices, etc., can solve the problems of poor sine of the source signal, disadvantageous high-precision subdivision, etc., to improve the subdivision accuracy and good sine of the source signal. , Solve the effect of poor sine of the source signal

Pending Publication Date: 2018-09-14
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
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Problems solved by technology

[0005] The embodiment of the present invention provides a photoelectric encoder and a moving grating to at least solve the technical problem that the source signal of the photoelectric encoder is poor in sinusoidality, which is not conducive to high-precision subdivision

Method used

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  • Photoelectric encoder and moving grating
  • Photoelectric encoder and moving grating
  • Photoelectric encoder and moving grating

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a photoelectric encoder and a moving grating. The photoelectric encoder comprises a structural body, a signal processor, a light source, a photoreceptor, a moving grating and afixed grating, wherein the width ratio of light and dark panes of the moving grating is 1:N; and N is a value greater than 1. The photoelectric encoder and the moving grating solve the technical problem that a source signal of a photoelectric encoder is low in sinusoidal performance, thus being not conductive to high precision subdivision.

Description

technical field [0001] The invention relates to the field of industrial measurement, in particular to a photoelectric encoder and a moving grating. Background technique [0002] The photoelectric encoder is a kind of angle measuring equipment integrating optics, mechanics and electricity. It converts optical signals into electrical signals through mechanical structure and signal processing circuit, so as to realize the direct measurement of various physical quantities such as angular displacement, speed and position. or indirect measurements. [0003] In the absolute photoelectric encoder, the absolute encoding through the rotation of the moving grating can realize that the encoding of each angle within one rotation is unique. In order to make the photoelectric encoder meet the requirements of high resolution and small size at the same time, the signal must be processed by electronic subdivision. The source signal that needs to be used in electronic subdivision is the corn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/347
CPCG01D5/3473
Inventor 周溪彭玉礼钟成堡王阳谢芳
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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