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Absolute double-axis photoelectric shaft-position encoder

A shaft angle encoder, absolute technology, applied in the direction of instruments, converting sensor output, using optical devices to transmit sensing components, etc., can solve problems such as functional limitations and application limitations, and achieve the effect of increasing functions and expanding the scope of application.

Inactive Publication Date: 2007-07-18
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The encoder can only measure one angular displacement. When two angular displacements need to be measured simultaneously in one shaft system, there are functional limitations and limited applications.

Method used

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  • Absolute double-axis photoelectric shaft-position encoder
  • Absolute double-axis photoelectric shaft-position encoder

Examples

Experimental program
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Embodiment Construction

[0012] The present invention is implemented according to the structure shown in Figure 2, wherein the toothed flange 22, the shaft sleeve 29, the base plate 30, the slit frame 33, the main shaft 38, the main shaft holder 39, the steel ball 40, the intermediate shaft 42, and the intermediate shaft hold Frame 43, steel ball 44, main shaft end support plate 45, the material of intermediate shaft end support plate 46 adopts 45 # Steel; the material of the housing 24 is aluminum (AL), and the screws 23, 25, 26, 31, 41 adopt standard parts; the emission light pipe 28 adopts the TSUS5401 type of Germany Telefunken, and the reception light pipe 35 adopts the German telephone Root BPW41N type, the substrate material of the slit 36 ​​and the absolute code disc 37 is K9 optical glass, and the matching tolerance between the parts in the biaxial system is set by the angle measurement accuracy of the encoder. The code channel distribution and slit configuration of the code disc are also set...

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Abstract

The invention relates to absolute twin shafting optical electric axial angle encoder. Its technique scheme is as follows: it includes flanged disc, body case, twin shafting, and reading system; the provincial axis is set at the symmetry center of the encoder; coded disc is sleeved on it; intermediate axis is sleeved on its cage outer; the outer of the intermediate axis is set its cage of which outer is set axial sleeve; the flanged disc, body case, axial sleeve, basal plate, slit rack, and slit are connected together to be a integrative component which is drove to turn round the intermediate axis by axial sleeve; provincial axis system is used to measure angular displacement data; and the intermediate axis system is used to measure their angular displacement quantity. The encoder increases the function of angular displacement measuring.

Description

1. Technical field [0001] The invention belongs to a dual-shaft encoder related to the technical field of photoelectric measurement. 2. Technical Background [0002] The photoelectric shaft encoder is a representative angular displacement sensor, which has been widely used in industry, transportation, aerospace, scientific experiments and other fields. Common photoelectric shaft encoders are single-axis. The closest prior art with the present invention is the product developed by the Institute of Optics, Fine Mechanics and Physics, Changchun Institute of Optics and Mechanics, Chinese Academy of Sciences. As shown in Figure 1, it is an "absolute photoelectric shaft encoder with a single shaft system". Including flange plate 1, housing fixing screw 2, housing 3, shafting system and reading system. The shafting system includes shaft end support plate 21, main shaft 20, screw 19, steel ball 18, main shaft holder 17, shaft sleeve 8, shaft sleeve fixing screw 4; the reading sys...

Claims

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Application Information

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IPC IPC(8): G01D5/26G01D5/347
Inventor 续志军
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI