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Excitation structure for detecting plate magnetic flux leakage

A magnetic flux leakage detection and excitation technology, applied in the direction of material magnetic variables, etc., can solve the problems of excessive detection results and influence of wires, and achieve the effect of high-definition full-coverage magnetic flux leakage detection, simple operation, and easy implementation

Pending Publication Date: 2019-06-14
CHINA PETROLEUM & CHEM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the excitation device is relatively fixed when detecting the magnetic flux leakage of the plate, and the problem that too many wires affect the detection result

Method used

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  • Excitation structure for detecting plate magnetic flux leakage
  • Excitation structure for detecting plate magnetic flux leakage
  • Excitation structure for detecting plate magnetic flux leakage

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Embodiment Construction

[0021] In order to make the objectives, technical solutions, and advantages of the implementation of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present inv...

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Abstract

The invention discloses an excitation structure for detecting plate magnetic flux leakage, which comprises magnetic steel, a yoke and a detection probe, wherein the magnetic steel is located on the lower surface of the yoke, the detection probe is located between two groups of magnetic steel, and magnetic flux leakage detection of the ferromagnetic material metal plate is achieved through the magnetic steel, the yoke and the detection probe. The excitation structure for detecting plate magnetic flux leakage is suitable for detecting the metal plate made of ferromagnetic materials, is high in overall structure stability, can detect large-area metal plates, and is simple to operate, easy to implement and high in detection efficiency, and realizes high-definition full-coverage magnetic flux leakage detection.

Description

Technical field [0001] The invention belongs to the field of magnetic flux leakage detection, and relates to an excitation structure used for plate magnetic flux leakage detection. Background technique [0002] Flat workpieces are widely used in various industries. Large-scale oil storage tank bottoms, thermal power plants, mining machinery, etc. involve a large number of applications of metal flat workpieces. When various types of defects occur in metal plates, material leakage or even occurrence Explosions and other accidents that endanger people's economy, lives and property are extremely important. Therefore, the detection of defects is particularly important. Most of these metal plates are ferromagnetic materials. Magnetic flux leakage detection is widely used in nondestructive testing of ferromagnetic materials. With the advancement of technology, the reliability of magnetic flux leakage detection results is getting higher and higher. [0003] Magnetic flux leakage detection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/83
Inventor 刘保余许志军成文峰苏林汤荣袁龙春陈峰马雪莉杜慧丽尹逊金郑树林刘俊甫龚则孟祥磊庄金峰钱得才侯世俊王军李耀宏徐海林李军陈静刘先东
Owner CHINA PETROLEUM & CHEM CORP
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