Strain measurement wire with two-dimensional code marks at two ends

A strain measurement and two-dimensional code technology, applied in the field of strain measurement wires, can solve the problems of high risk of error, unrealistic and efficient, and complicated correspondence between strain measurement points and resistance strain gauge ports, etc., so as to reduce workload and improve The effect of efficiency and accuracy

Inactive Publication Date: 2016-10-12
DALIAN UNIV OF TECH
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, based on the country's increasing demand for the development of large-scale structures for missiles and heavy-duty launch vehicle shells, the widespread use of large-scale structures in engineering problems, and the increasingly complex engineering problems, the number of strain measurement points in current structural strain measurement experiments has also increased greatly, often as many as This leads to too many connecting wires between the resistance strain gauge and the measurement port of the resistance strain gauge, which makes the corresponding relationship between the strain measurement point and the resistance strain gauge port very complicated. It is not realistic and efficient to obtain the corresponding relationship between the resistance strain gauges at the two ends of the connecting wire and the resistance strain gauge ports, and the risk of error in this operation is very high

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 measurement wire with two-dimensional code marks at two ends
  • Strain measurement wire with two-dimensional code marks at two ends
  • Strain measurement wire with two-dimensional code marks at two ends

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] figure 1 is the structural diagram of the general wire connection test piece and the static strain gauge, while figure 2 For the structure diagram of the present invention and test piece and resistance strain gauge, refer to figure 2 , the arrangement of a strain measuring wire with two-dimensional code marks on both ends provided by the present invention is as follows: one end of the strain measuring wire 3 is connected to the strain gauge 2, and the strain gauge 2 is on the test piece 1, close to the strain gauge 2 There is a two-dimensional code mark 4 on the position, and at the experimental site, the two-dimensional code mark has a corresponding relationship with the number of the strain measuring point. The other end of the strain measurement wire 3 is connected to the resistance strain gauge, and the end close to the resistance strai...

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 belongs to the field of structural strain measurement of engineering mechanics and provides a strain measurement wire with two-dimensional code marks at both ends. One end of the strain measuring wire is connected to the strain gauge, and the strain gauge is on the test piece 1, and there is a two-dimensional code mark near the strain gauge, and the two-dimensional code mark has a corresponding relationship with the number of the strain measuring point; The other end is connected to the resistance strain gauge, and the end close to the resistance strain gauge has another two-dimensional code mark, and the two-dimensional code mark is corresponding to the measurement port of the resistance strain gauge. The present invention can improve the efficiency and accuracy of this type of strain measurement experiment, and make the strain gauge and the measurement port correspond efficiently and accurately in the large-scale structure strain measurement experiment of missile and heavy launch vehicle shell, thereby reducing the number of ports in the wiring process. Recorded workload.

Description

technical field [0001] The invention relates to the field of structural strain measurement of engineering mechanics, and proposes a strain measurement wire with two-dimensional code marks at both ends. Background technique [0002] Generally, an elastic object will produce a certain deformation under the action of external force, and the degree of deformation is called strain. There are normal strain (linear strain), shear strain (angular strain) and volume strain. Among them, the positive strain formula is ε=ΔL / L, where L is the length before deformation, and ΔL is the elongation after deformation. [0003] At present, the electrical measurement method is widely used in the strain measurement method. The electrical measurement method utilizes the principle that the resistance of a metal resistance wire will change when it is stretched or compressed. The resistance wire can be made into a resistance strain gauge by winding the resistance wire back and forth into a special...

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): G01B7/16
CPCG01B7/18
Inventor 王博朱时洋王世阳毕祥军郝鹏张希王立朋
Owner DALIAN 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