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A simplified search algorithm based on multiple signal classification (MUSIC) approach with rotating dipole model has been proposed to identify the defect locations inside a magnetically permeable bar. This new algorithm identifies the defect locations and the moments of the modelled anti-dipoles without the necessity to decompose the single column lead vector by singular value decomposition (SVD)...
Magnetic flux leakage technique is used for defect detection inside a magnetically permeable bar by measuring the leakage fields outside the bar. Defects of varying sizes in a magnetically permeable bar have been modelled as localized anti-dipoles with different moments. These defect locations and moments have to be determined based on the measurement of the leakage fields in the presence of random...
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