Strain foil and method of full-bridge type and half-bridge type measurement shearing strain

A strain gage, full bridge technology, applied in the field of strain gage and experimental stress analysis, can solve the problem of not being able to measure the shear strain of the measured point

Inactive Publication Date: 2013-05-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Internet search shows that in the current "resistance strain test technology" in "experimental stress analysis", the resistance strain gauge is still mainly used to measure the strain of the component when it is under force, and the resistance strain gauge can only measure the strain along the strain gauge grid. The linear strain in the long direction cannot measure the shear strain of the measured point

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
  • Strain foil and method of full-bridge type and half-bridge type measurement shearing strain
  • Strain foil and method of full-bridge type and half-bridge type measurement shearing strain
  • Strain foil and method of full-bridge type and half-bridge type measurement shearing strain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Known by the resistance strain testing technology professional, the resistance strain gauge can only measure the linear strain, and to measure the shear strain γ, only the linear strain ε in three directions can be measured first. α1 ,ε α2 ,ε α3 , and then according to the strain analysis formula (1)

[0014] ϵ α 1 = ϵ x + ϵ y 2 + ϵ x - ϵ y ...

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 strain foil and a method of full-bridge type and half-bridge type measurement shearing strain, and belongs to the technical field of 'experimental stress analysis'. The strain foil of the bridge type measurement shearing strain is provided with a 0-degree sensitive grid, a 90-degree sensitive grid, a first 45-degree sensitive grid and a second 45-degree sensitive grid. The strain foil of the half-bridge type measurement shearing strain is provided with a 135-degree sensitive grid and a 45-degree sensitive grid. By means of the strain foil and the method of the full-bridge type and the half-bridge type measurement shearing strain, manufacturing of shearing strain foils for shearing strain measurement can be conducted directly, and a novel testing means is added in the field of 'resistor strain tests' in the 'experimental stress analysis'.

Description

technical field [0001] The invention relates to a full-bridge and half-bridge strain gauge and a method for measuring shear strain, belonging to the technical field of "experimental stress analysis". Background technique [0002] Internet search shows that in the current "resistance strain test technology" in "experimental stress analysis", the resistance strain gauge is still mainly used to measure the strain of the component when it is under force, and the resistance strain gauge can only measure the strain along the strain gauge grid. The linear strain in the long direction cannot measure the shear strain of the measured point. Contents of the invention [0003] The purpose of the present invention is to complete the manufacture of shear strain gauges capable of directly measuring shear strain. Added new test means in the "Resistance Strain Test" field in "Experimental Stress Analysis". [0004] A full-bridge strain gauge for measuring shear strain, characterized in t...

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): G01B7/16
Inventor 徐鹿麟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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