Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rotary transformer static and dynamic angle measuring accuracy calibration device and method

A technology of resolver and angle measurement accuracy, which is used in the transmission of sensing components and instruments using electrical/magnetic devices to achieve the effects of improving system angle measurement accuracy, enhancing research, and reducing hardware costs

Inactive Publication Date: 2014-01-08
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
View PDF4 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of this invention is to propose a new calibration device and method for the angle measurement accuracy of the resolver, complete the static and dynamic angle measurement accuracy calibration of the resolver, and solve the problem of comprehensive and reliable calibration, error analysis and compensation for the resolver angle measurement system The problem

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
  • Rotary transformer static and dynamic angle measuring accuracy calibration device and method
  • Rotary transformer static and dynamic angle measuring accuracy calibration device and method
  • Rotary transformer static and dynamic angle measuring accuracy calibration device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing:

[0035] The brushless dual-channel resolver and its supporting circuit used in a space photoelectric turntable are used as the system to be calibrated, and the axis-angle conversion chip AD2S80 of AD Company is used to complete the resolution of the resolver signal. The number of conversion bits is 21, and the angular resolution is 0.618. ", the nominal angle measurement accuracy is ±15", and the measurement speed is less than 5r / min.

[0036] The metal polyhedral prism adopts 23-hedron, the grade is 1, the working angle deviation is ±2", and the working angle measurement uncertainty is ±0.5". The photoelectric autocollimator adopts German TriAngle electronic autocollimator, with a resolution of 0.01" and an accuracy of 0.75" within a field of view of about 0.5°. After the two cooperate, the accuracy of ±2.2" can be achieved in a small range,...

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 rotary transformer static and dynamic angle measuring accuracy calibration device and a rotary transformer static and dynamic angle measuring accuracy calibration method. The method is based on an external reference comparison method. The calibration device mainly comprises a driving turntable, a mechanical shaft system, a metal polygon, a photoelectric auto-collimator, a circular grating and the like. The metal polygon and the photoelectric auto-collimator are utilized for carrying out static angle measuring accuracy calibration on a rotary transformer, in addition, calibration and compensation are carried out on the circular grating, and installation errors are corrected. When the driving turntable drives the shaft system to rotate, the circular grating is utilized for carrying out dynamic angle measuring accuracy calibration on the rotary transformer. The device and the method have the advantages that different external reference characteristics are combined, the same device is utilized for completing the static and dynamic calibration of the rotary transformer, the comprehensive analysis and the error compensation of the angle measuring accuracy of the rotary transformer are realized, the improvement of an angle measuring system is favorably realized, and the angle measuring accuracy is improved.

Description

Technical field: [0001] The invention relates to high-precision angle measurement and calibration technology, in particular to a rotary transformer static and dynamic angle measurement accuracy calibration device and method, which can be used for calibration of the angle measurement system of a high-precision turntable. Background technique: [0002] Resolver (resolver for short) is an angle-measuring element whose output voltage changes with the rotor angle. It is essentially a signal motor. Based on the principle of electromagnetic induction, it outputs an analog signal containing angle information, which is obtained after circuit processing. High-precision angle data. Due to the advantages of simple structure, convenient maintenance, long life, insensitivity to mechanical and electrical noise, and resistance to harsh environments, resolvers are widely used in servo systems, robot systems, automobiles, electric power, textiles, and aerospace. [0003] Due to the limitatio...

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): G01D18/00G01D5/14
Inventor 白帅贾建军张亮杨明冬
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com