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

Device and method for detecting internal defects of building material based on magnetic particles

A technology of magnetic particles and internal defects, which is applied in the direction of material magnetic variables and the preparation of test samples, can solve the problems of time-consuming, labor-intensive, and inability to measure, and achieve the effects of improving detection efficiency, broadening applicability, and reducing labor costs

Pending Publication Date: 2021-02-12
ZHENGZHOU UNIV
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires that the sample or workpiece to be tested must be a ferromagnetic material
Therefore, this method cannot measure bridges, buildings, walls, roads and other engineering buildings or structures built with traditional industrial concrete building materials, exposing the limitations of its applicability
In addition, it is difficult to detect taller building structures or lower underground structures to be tested by relying on existing manual detection technology, and it is time-consuming and laborious

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
  • Device and method for detecting internal defects of building material based on magnetic particles
  • Device and method for detecting internal defects of building material based on magnetic particles
  • Device and method for detecting internal defects of building material based on magnetic particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0030] Its implementation mode comprises the following steps:

[0031] (1) Make magnetic particles that can be fully mixed with concrete building materials, use magnetic particles as a building material component, fully mix with concrete building materials, and use the mixed materials to build the target building structure 1, such as figure 1 shown;

[0032] (2) The signal source 2 is directly installed inside the vehicle-mounted platform 9 of the mobile device to provide an alternating current for the scanning probe 12 of the nondestructive testing device;

[0033] (3) if figure 2 As shown, in the probe carrying moving mechanism, by adopting the combined design form of mechanical rod telescopic, folding and rotating as its manual or automatic moving mechanism design, the scanning probe 12 located on the scanning probe carrying platform 15 can be fully moved in three-dimensional space. The azimuth moves freely for scanning detection. Wherein, one end of the upper mechanica...

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 device and method for detecting internal defects of a building material based on magnetic particles. The method comprises the following steps that: (1) magnetic particles which can be fully mixed with a concrete building material are prepared; (2) the magnetic particles are taken as a building material component, the magnetic particles are fully mixed with the concrete building material, and a target building structure is built by utilizing the mixed material of the magnetic particles and concrete building material; and (3) a nondestructive testing device carrying a scanning probe is combined, and the nondestructive testing device can carry out nondestructive testing on the surface of the target building structure in a manual or automatic moving mode so as to monitor the specific situation of internal defects or fine cracks of the target building structure.

Description

technical field [0001] The invention relates to a device and method for detecting internal defects of building materials based on magnetic particles. Background technique [0002] In the field of industrial production and engineering construction, the non-destructive testing method that uses the principle of electromagnetic induction to detect internal defects of building materials is a commonly recognized conventional method for defect detection in the industry, such as eddy current testing. It uses an external magnetic field to induce eddy currents on the surface of ferromagnetic samples such as metals to be tested or workpieces, and measures the changes in related physical quantities such as the phase and amplitude of the induced eddy currents to detect the surface of the sample to be tested. Whether there are defects or cracks on or near the surface, and judge the size of the defects or cracks and the degree of related damage. It has the advantages of wide detection ran...

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): G01N27/83G01N1/38
CPCG01N27/83G01N1/38
Inventor 卫荣汉许雁雅周克佳豆丽莎刘庆稳胡志鑫陈银玲赵东阳李旺明张玉东徐献忠李静
Owner ZHENGZHOU UNIV
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