Supercharge Your Innovation With Domain-Expert AI Agents!

Vernier absolute type photoelectric encoder single-turn absolute position reading device and method

A photoelectric encoder and absolute position technology, which is applied in the direction of measuring devices, instruments, and conversion sensor outputs, etc., can solve problems such as difficult coding tasks, solve the problem of high-resolution position information reading, and realize the effect of miniaturized applications

Active Publication Date: 2020-07-03
BEIJING JINGDIAO GRP CO LTD
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional encoders are difficult to meet the above requirements, and it is difficult to perform encoding tasks in these applications

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vernier absolute type photoelectric encoder single-turn absolute position reading device and method
  • Vernier absolute type photoelectric encoder single-turn absolute position reading device and method
  • Vernier absolute type photoelectric encoder single-turn absolute position reading device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] combine Figure 1-Figure 2 , a single-turn absolute position reading device of a vernier absolute photoelectric encoder, comprising a light-emitting element 1, a grating code disc 2, a photoelectric sensor chip 3, and an electrical signal processing device 4. There are three circles of code tracks on the grating code disc 2, which are respectively the main code track, the vernier code track, the segment code track, and the three circle code tracks respectively have , , A reticle contains a certain phase relationship. The photoelectric sensor chip 3 installed on the electrical signal processing device 4 has three groups of patterns in the radial direction, corresponding to the engraved lines of the three circles of the grating code disc 2, receiving light from the light-emitting element 1 and passing through the grating code. The light from the disk and the slit is converted into an electrical signal, and the sine and cosine signals of different phases are output a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a vernier absolute type photoelectric encoder single-turn absolute position reading device and method. The problem of position information reading of a small-size encoder in practical application under the condition that the number of physical scribed lines of the encoder is not increased is solved, the resolution is high, and the requirement that an initial absolute position can be obtained immediately after power-on is met. The device includes a light-emitting element, a grating code disc, a photoelectric sensing chip and an electric signal processing device, andthephotoelectric sensing chip receives light from the light-emitting element and penetrating through the grating code disc and a slit, converts the received light signal into a three-channel differential sine and cosine voltage signal, and obtains the phase angle of the three-channel electric signal corresponding to the current position through amplification adjustment, quantitative calibration andsubdivision operation processing of the electric signal processing device. According to the single-turn absolute position reading method for the vernier absolute type photoelectric encoder, the uniquesingle-turn absolute position value is spliced according to the phase angle and the difference value of the phase angle and is sent out in a serial data format.

Description

technical field [0001] The invention relates to a vernier absolute photoelectric encoder, more specifically, it relates to a single-turn absolute position reading device and method of a vernier absolute photoelectric encoder. Background technique [0002] Photoelectric encoders are sensors that convert mechanical angular displacement (angle or length) into electrical signals, and are widely used in industrial fields such as CNC machine tools and robots to obtain position and speed information. [0003] There are two types of photoelectric encoders: incremental and absolute. The incremental encoder has a simple structure and can provide relative position, but it needs to provide a zero point for reference positioning, that is, the absolute position coordinates can only be established after the operation of searching for the reference point Z signal is performed first after power-on. Compared with the incremental encoder, the position of the absolute encoder is uniquely deter...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01D5/347
CPCG01D5/347
Inventor 仲婷婷石忠东
Owner BEIJING JINGDIAO GRP CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com