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Photoelectric coded disk and manufacturing method and application thereof

A technology of photoelectric coding and production method, which is applied in the field of photoelectric coding discs, can solve the problems of precision, cost and reliability that cannot meet the requirements, and achieve the effect of low cost, high feasibility and high precision

Inactive Publication Date: 2010-10-20
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In these applications, iron, aluminum or even paper code discs are generally used, and the accuracy, cost and reliability cannot meet the requirements

Method used

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  • Photoelectric coded disk and manufacturing method and application thereof
  • Photoelectric coded disk and manufacturing method and application thereof
  • Photoelectric coded disk and manufacturing method and application thereof

Examples

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Embodiment Construction

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] A method for making a photoelectric encoder disk, comprising the steps of:

[0033] Step 1: Make a disk base with a CD. Ordinary discs (such as CD-ROM, DVD-ROM, etc.) generally use polycarbonate (Polycarbonate, PC) as raw material, which is colorless, transparent, heat-resistant, impact-resistant, flame-retardant BI grade, and has good performance in normal use temperature. characteristics of mechanical properties. In addition, since the balance and uniformity of the disk body are fully considered during the pressing process of the optical disk, the balance and material uniformity of the code disk are well guaranteed when the optical disk is used as the disk base of the code disk.

[0034] Step 2: Draw and print to generate a raster disk. The present invention utilizes the polygonal drawing function of design software (such as AutoCAD, ...

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PUM

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Abstract

The invention discloses an environmental-friendly photoelectric coded disk which has low cost and wide scope of application, and a manufacturing method and application thereof; the method comprises the following steps: (1) adopting a compact disk to manufacture a disk base; (2) drawing and printing to generate a grating disk; and (3) assembling the photoelectric coded disk. The invention also comprises the photoelectric coded disk manufactured through the method, and the method for applying the photoelectric coded disk to measure the speed. The photoelectric coded disk manufactured through the method is characterized by low cost and wide scope of application, and can effectively utilize waste and old disks and other resources which are difficult to recycle.

Description

technical field [0001] The invention belongs to the technical field of detection, measurement, control and measurement, and specifically relates to a photoelectric encoder disk and its manufacturing method and application. recycled resources. Background technique [0002] Photoelectric encoder disk, also known as grating disk, is the core component of photoelectric encoder. A photoelectric encoder is a sensor that can convert the speed of the connected shaft or rotating parts into a pulse signal or a digital square wave signal through photoelectric conversion. Its main components are composed of a photoelectric encoder disk, a photoelectric emission and detection device, and A sensor device consisting of a shaping and transmitting device. [0003] According to different detection principles, photoelectric encoder disks can be divided into transmissive photoelectric encoder disks and reflective photoelectric encoder disks. The former generally uses chemical etching, laser ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/38G01P3/36
Inventor 王乘刘昌洪成耀君
Owner HUAZHONG UNIV OF SCI & TECH
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