High-precision angle measurement error detection device and its detection method based on double autocollimators

An autocollimator and error detection technology, which is applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problem that the detection results cannot accurately reflect the real errors, etc.

Active Publication Date: 2020-07-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When performing error detection on a high-precision photoelectric encoder, the detection result is often affected by the levelness, so the detection result cannot accurately reflect the real error of the photoelectric encoder under test

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
  • High-precision angle measurement error detection device and its detection method based on double autocollimators
  • High-precision angle measurement error detection device and its detection method based on double autocollimators
  • High-precision angle measurement error detection device and its detection method based on double autocollimators

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] The invention provides a high-precision angle measurement error detection device based on dual autocollimators, such as figure 1 shown, including:

[0035] The photoelectric encoder under test 1;

[0036] A polygonal prism 2, located above the photoelectric encoder 1 under test and rotating coaxially with the photoelectric encoder 1 under test;

[0037] The first autocollimator 3 and the second autocollimator 4 are respectively aligned w...

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 application discloses a high-precision angle measurement error detection device and its detection method based on double autocollimators, including: a tested photoelectric encoder; The device rotates coaxially; the first autocollimator and the second autocollimator are respectively aligned with the anti-diameter surface of the polyhedral prism, and are used to simultaneously measure the angle measurement error value of the photoelectric encoder under test; the processor uses It is used to read the angle measurement error value and process it through the preset error calculation algorithm to obtain the high-precision angle measurement error result of the photoelectric encoder under test. The device collects the error measurement results of two autocollimators for the photoelectric encoder under test at the same time, and completes the high-precision error detection of the photoelectric encoder under test according to the preset error calculation algorithm, eliminating the error caused by the non-level polygonal prism The detection is inaccurate, and the error detection of the high-precision photoelectric encoder can be accurately realized, the detection method is simple, and the detection accuracy is greatly improved.

Description

technical field [0001] The invention relates to the technical field of photoelectric displacement precision measurement, in particular to a high-precision angle measurement error detection device and a detection method based on double autocollimators. Background technique [0002] Photoelectric shaft encoder, also known as photoelectric angle position sensor, is a precision digital angle measuring device integrating light, mechanics and electricity. It uses a high-precision measurement circular grating as the detection element, and converts the angular position information into digital codes through photoelectric conversion. It has the advantages of high precision, wide measurement range, small size, light weight, reliable use, and easy maintenance. It is widely used in Radar, robot, photoelectric theodolite, CNC machine tools and many other fields. [0003] When using a polygonal prism and a laser autocollimator to detect the angle measurement error of a high-precision pho...

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 Patents(China)
IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 于海万秋华赵长海梁立辉杜颖财
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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