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Steel wire rope magnetic flux leakage imaging real-time processing method under continuous sampling

An imaging processing and real-time processing technology, which is applied to the measurement of magnetic variables, material magnetic variables, magnetic sensor arrays, etc., can solve problems such as difficult online monitoring, improve processing speed, and avoid damage misjudgment or missed judgment.

Active Publication Date: 2019-12-20
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of these methods are continuous batch data processing methods, which are difficult to be used for online monitoring

Method used

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  • Steel wire rope magnetic flux leakage imaging real-time processing method under continuous sampling
  • Steel wire rope magnetic flux leakage imaging real-time processing method under continuous sampling
  • Steel wire rope magnetic flux leakage imaging real-time processing method under continuous sampling

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Experimental program
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Embodiment

[0034] figure 2 It is a specific implementation flow chart of the real-time processing method for magnetic flux leakage imaging of steel wire rope under continuous sampling in the present invention. Such as figure 2 As shown, the concrete steps of the real-time processing method for magnetic flux leakage imaging of steel wire rope under continuous sampling of the present invention include:

[0035] S201: Magnetic sensor array setup:

[0036] In order to collect the magnetic flux leakage signal of the steel wire rope, the present invention sets a magnetic sensor array for collecting the magnetic flux leakage signal in the radial direction of the steel wire rope. image 3 It is a schematic diagram of the magnetic sensor array in the present invention. Such as image 3As shown, the magnetic sensor array in the present invention includes M magnetic sensors, and the M magnetic sensors are arranged at equal intervals along the circumference of the steel wire rope, and the oute...

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Abstract

The invention discloses a steel wire rope magnetic flux leakage imaging real-time processing method under continuous sampling. The method comprises the following steps that magnetic flux leakage signals of a steel wire rope are acquired in sections during magnetic flux leakage signal acquisition, magnetic flux leakage imaging processing is carried out on each section of magnetic flux leakage signals by using a method combining "primary screening" and "fine diagnosis", then a current magnetic flux leakage image is spliced with the existing spliced magnetic flux leakage image, wherein overlappeddata sections are divided into four conditions for processing, and the obtained spliced magnetic flux leakage image each time after splicing is finished is output and displayed in real time until allsignals are processed. The steel wire rope magnetic flux leakage imaging real-time processing method can effectively improve the processing speed of magnetic flux leakage imaging, can avoid the phenomenon of misjudgment or omission of judgement of the damage of the steel wire rope caused by signal segmentation, and realizes the real-time processing of the magnetic flux leakage imaging of the steel wire rope.

Description

technical field [0001] The invention belongs to the technical field of steel wire rope damage diagnosis, and more specifically relates to a real-time processing method for magnetic flux leakage imaging of steel wire ropes under continuous sampling. Background technique [0002] Steel wire rope has the characteristics of high strength, high reliability, and high stability, and is widely used in various industrial scenarios to provide functions such as lifting, traction, and load-carrying. As the wire rope is usually used as a key component of large machinery, its working status will affect the operation status and safety performance of the entire equipment. Therefore, the fault diagnosis of wire rope is of great significance to ensure the stability of equipment and production safety. There are many methods for non-destructive testing of steel wire ropes. A common method is to collect the magnetic flux leakage signal on the surface of the steel wire rope and use the magnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/83G01R33/10G01R33/00
CPCG01N27/83G01R33/10G01R33/0094
Inventor 刘志亮周作普周建国
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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