Absolute photoelectric encoder coded disc and absolute photoelectric encoder

A photoelectric encoder, absolute technology, applied in the field of photoelectric encoder, can solve problems such as code disc deformation, vibration, and photoelectric shaft angle encoder accuracy drop, and achieve the effects of increasing mechanical strength, reducing structural deformation, and improving accuracy

Active Publication Date: 2017-08-25
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0005] because figure 1 The metal code disc shown has too many hollow parts. When the encoder is working or used for a period of time, it is easy to cause the code disc to deform or vibrate, resulting in a decrease in the accuracy of the photoelectric shaft angle encoder, or even causing the encoder to not work properly.

Method used

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  • Absolute photoelectric encoder coded disc and absolute photoelectric encoder
  • Absolute photoelectric encoder coded disc and absolute photoelectric encoder
  • Absolute photoelectric encoder coded disc and absolute photoelectric encoder

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Embodiment Construction

[0044] 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.

[0045]The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appr...

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Abstract

The embodiment of the invention provides an absolute photoelectric encoder coded disc and an absolute photoelectric encoder. According to the invention, a hollowed-out portion of the coded disc is removed on the basis of a traditional Gray code metal coded disc, so that the mechanical strength of the coded disc is increased, the structural deformation of the coded disc is reduced, and the accuracy of the encoder is further improved. The absolute photoelectric encoder coded disc is suitable for being applied to occasions with high vibration intensity and severe environment.

Description

technical field [0001] The invention relates to the technical field of photoelectric encoders, in particular to an absolute photoelectric encoder code disc and an absolute photoelectric encoder. Background technique [0002] Photoelectric shaft encoder, also known as photoelectric angle position sensor, is a precision digital angle measuring device integrating light, mechanics and electricity. The absolute encoder is a sensor that directly outputs digital quantities. On its circular code disc, there are several concentric code tracks in the radial direction. Each code track is composed of light-transmitting and opaque fan-shaped intervals. The number of sectors is a double relationship, and the number of code tracks on the code disc is exactly the number of bits of its binary number. On one side of the code disc is a light source, and on the other side there is a photosensitive element corresponding to each code track, and each light source and photosensitive element are pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/347
CPCG01D5/34707G01D5/34792
Inventor 赵长海万秋华于海
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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