Continuous power loss measurement with and against the rolling direction of electrical steel strip using nonenwrapping magnetisers

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Continuous power loss measurement with and against the rolling direction of electrical steel strip using nonenwrapping magnetisers

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© The Institution of Electrical Engineers
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Methods of magnetising steel strip in continuous production lines have been developed so that magnetisation can be accomplished without enwrapping strip with conductors. Magnetisation can be achieved both in line with the strip rolling direction and across the strip width at 90° to the rolling direction. Appropriate sensing systems have been developed so that magnetic parameters such as loss and permeability can be measured at 0° and 90° to the rolling direction, without enwrapping the strip with sensing conductors.

Inspec keywords: magnetisation; steel; loss measurement

Other keywords: manufacturing processes; continuous production lines; nonenwrapping magnetisers; electrical steel strip; power loss measurement; materials preparation

Subjects: Phase and gain measurement

References

    1. 1)
      • P. Beckley , J.H.R. Lodge . A magnetisation system for a thin steel sheet flaw detector. Br. J. Non-Destr. Test. , 19 - 20
    2. 2)
      • P. Beckley , C.H. Porter , D. Snell . On-line, single-sheet and Epstein power loss testing. J. Magn. & Magn. Mater. , 168 - 175
    3. 3)
      • C. Dannatt . Energy loss testing of magnetic materials utilizing a single strip specimen. J. Sci. Instrum. , 276 - 285
    4. 4)
      • F.J. Wilkins , A.E. Drake . Instrument for measuring local power losses in uncut electrical sheet steel. Proc. IEE , 4 , 786 - 793
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