Two-dimensional absolute coding three-freedom moving platform measuring system

An absolute coding and motion platform technology, applied in the field of two-dimensional absolute coding three-degree-of-freedom motion platform measurement system, can solve problems such as measurement errors, achieve the effect of increasing the range, strong real-time performance, and improving system integration

Active Publication Date: 2017-12-29
HEFEI UNIV OF TECH
View PDF11 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a two-dimensional absolute coding three-degree-of-freedom motion platform measurement system to realize the displacement measurement of the three-degree-of-freedom motion platform and solve the problem of existing measurement errors in the prior art

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
  • Two-dimensional absolute coding three-freedom moving platform measuring system
  • Two-dimensional absolute coding three-freedom moving platform measuring system
  • Two-dimensional absolute coding three-freedom moving platform measuring system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] refer to figure 1 , two-dimensional absolute coding three-degree-of-freedom measurement method and system, including two-dimensional absolute position coding plate 2, coding imaging camera 4 and coding image processing system 7 based on LabVIEW. The data communication between the coded imaging camera 4 and the coded image processing system 7 based on LabVIEW is realized through the USB3.0 data line 13 . The two-dimensional absolute position encoding board 2 uses a pseudo-random m-sequence to perform two-dimensional absolute position encoding, and each different position on the two-dimensional absolute position encoding board corresponds to a unique two-dimensional encoding sequence; the encoding imaging camera 4 includes a ring lighting source 3, three Degree of freedom motion platform 1, focusable imaging lens 5, industrial camera 6; coded image processing system 7 based on LabVIEW includes: camera parameter setting and image acquisition module 8, image alignment error...

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 discloses a two-dimensional absolute coding three-freedom moving platform measuring system which comprises three parts, namely a two-dimensional absolute position coding board, a coding imaging camera and a LabVIEW-based coding image processing system. The coding imaging camera performs imaging on a two-dimensional coding pattern in an imaging area. The LabVIEW-based coding image processing system mainly realizes functions of setting camera parameters and acquiring images, identifying an image alignment error parameter, measuring a deflection angle, decoding a displacement and performing subdividing, performing error compensation correction, and obtaining a planar displacement and deflection angle measurement result. According to the two-dimensional absolute coding three-freedom moving platform measuring system, the two-dimensional absolute position coding board is fixed on a three-freedom moving platform; the displacement and the deflection of the three-freedom moving platform in the plane are in one-to-one correspondence to coding images of an industrial camera detecting area; and precise measurement for the two-dimensional absolute position and the three-freedom movement of the deflection angle is realized through demodulating the image information by the LabVIEW-based coding image processing system.

Description

technical field [0001] The invention relates to the field of precision measurement systems, in particular to a two-dimensional absolute coding three-degree-of-freedom motion platform measurement system. Background technique [0002] The three-degree-of-freedom motion platform includes movement and rotation in the X and Y directions. It is a typical structure in engineering applications such as mechanical processing and optical adjustment. , The displacement in the Y direction is realized by two linear grating sensors, and the rotation angle is realized by a rotary encoder. In the practical application of grating sensor, the traditional metering grating has no zero mark, and the current relative position information is obtained by calculating the number of increments from the set zero point during measurement. If the original measurement result is lost due to shutdown and other reasons during the measurement process, it must be Re-homing and measurement; Two-dimensional moti...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/03G01D5/347
CPCG01B11/03G01D5/34792
Inventor 夏豪杰张海铖胡梦雯于连栋李维诗
Owner HEFEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap