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Small absolute metal photoelectric coded disk using single-loop gray codes

A metal code disc and photoelectric coding technology, which is applied in the direction of using optical devices to transmit sensing components, can solve the problem of not mentioning the implementation of the photoelectric encoder, etc., to reduce the volume and quality, reduce the size of the code disc, and avoid thick effect of error

Inactive Publication Date: 2012-07-04
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

This article proposes a single-turn Gray code, which has the characteristics of univariate, cyclic, and reciprocal, and points out that this code can be used in the field of angle measurement, but only a low-digit code is obtained in the article And did not mention the specific implementation of the photoelectric encoder

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  • Small absolute metal photoelectric coded disk using single-loop gray codes
  • Small absolute metal photoelectric coded disk using single-loop gray codes
  • Small absolute metal photoelectric coded disk using single-loop gray codes

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Embodiment Construction

[0027] The invention according to figure 1 The structure of the metal code disc shown and the press figure 2 The metal slit disk configuration shown is implemented.

[0028] exist figure 1 In the schematic diagram of the structure of the metal code disc shown, the black part corresponds to binary "1" to indicate light transmission, and the white part corresponds to binary "0" to indicate light transmission. The base material of the metal code disc 1 is made of stainless steel, the outer diameter of the metal code disc 1 is 45 mm, the outer diameter of the coding pattern is 43 mm, and the inner diameter is 40 mm. The manufacturing process is as follows: first make the code disc pattern on the optical code disc, coat the photoresist on the stainless steel plate according to the required metal code disc 1 size, and then use the optical code disc to expose the stainless steel plate, and the stainless steel plate will be developed and fixed. Etched in the corrosive solution to ...

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Abstract

A small absolute metal photoelectric coded disk using single-loop gray codes belongs to the technical fields of photoelectric measurement, relates to a metal photoelectric coded disk, and aims at resolving the technical problem of providing a small absolute metal photoelectric coded disk using single-loop gray codes. The technical scheme is that the small absolute metal photoelectric coded disk using single-loop gray codes comprises a metal code disk and a metal slit disk, wherein the metal code disk adopts a coding method in single-loop gray code mode, the metal slit disk is evenly divided into n light transmission areas at the 360-degree periphery, the metal code disk is arranged on a spindle and can move along the spindle, and the metal slit disk is fixed. Thus, the small absolute metal photoelectric coded disk using single-loop gray codes is formed.

Description

technical field [0001] The invention belongs to the technical field of photoelectric measurement, and in particular relates to a small absolute metal photoelectric encoder disc using a single-turn Gray code. Background technique [0002] The photoelectric encoder is a digital angle measuring device integrating light, mechanics and electricity, which is widely used in dynamic measurement and real-time control systems in industrial and technological fields. The photoelectric encoder disc is the core component of the photoelectric shaft encoder, including a code disc and a slit disc. [0003] With the development of aerospace technology, high precision, miniaturization and impact resistance have become the development trend of photoelectric encoders. Because photoelectric encoders are often used in aerospace and industrial fields, they have strict requirements on the volume, weight, and impact resistance of the device, so miniaturization and impact resistance have become urgen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/34
Inventor 万秋华王媛媛梁立辉
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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