Method and apparatus for concrete damage detection based on impedance imaging

A technology of impedance imaging and damage detection, applied in the direction of material resistance, can solve the problems of large difference in dielectric constant, limited detection depth, and low resolution
CN1837805AInactive Publication Date: 2006-09-27SICHUAN UNIV
0 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SICHUAN UNIV
Publication Date
2006-09-27
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

This invention relates to a method and apparatus for concrete damage detection based on impedance imaging, which comprises the following steps: (1) setting multiple electrodes on target; (2) connecting the excitation input ports of former electrodes to the multi-way input switch; (3) forcing the drive sine current to every two electrodes by turns, measuring the current amplitudes and phases; (4) computing resistance distribution in the concrete; (5) acquiring and storing computation data to compare with given data for analysis.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of damage detection of concrete components, in particular to a method and equipment capable of real-time monitoring of the internal conditions of concrete components. Background technique

[0002] Health diagnosis and damage detection of concrete components have an important impact on the development of the national economy and people's lives. The technology of health diagnosis and damage detection of concrete components is one of the main problems that need to be overcome in the world today.

[0003] At present, the methods used to detect internal defects in concrete mainly include ultrasonic testing, radar testing and optical fiber sensing testing, among which ultrasonic testing is the most widely used.

[0004] The basic principle of ultrasonic testing is to compare the relative changes of parameters such as sound velocity, amplitude and frequency when the ultrasonic pulse passes thr...

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