Steel pipeline defect magnetic three-component combined detection and identification method
A technology that combines detection and identification methods, applied in the direction of material magnetic variables, etc., to achieve the effect of improving the application effect, rapid identification and positioning, and improving the level of integrity management
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[0028] In order to further understand the content, characteristics, and efficacy of the present invention, it will be described in detail with reference to the drawings:
[0029] See Figure 1 ~ 7 , A steel pipe defect magnetic three component combination detection and recognition method, the method adopts the following steps to acquire an abnormal feature value of the tube combination magnetic permanence:
[0030] Step 1: Measure the magnetic field strength in the pipeline direction by the TSC-5M-32 stress concentration magnetic detector, to obtain magnetic tri-component HX, Hy, HZ distribution change curve, please see figure 2 . Export the original data, get a map, then convert the map to Table data using the software.
[0031] Step 2: Correct and denoise the measured magnetic trone data to obtain valid data, see image 3 . When calibrating, magnetic triovascular data can be compensated according to the pipe buried, the static magnetic field change and the detector operation of th...
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