Magnetic examinations of wire ropes: loss of metallic area (LMA) measurement with Hall-effect sensors

Magnetic examinations of wire ropes: loss of metallic area (LMA) measurement with Hall-effect sensors

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The paper reports on investigations related to use of Hall-effect sensors for measurement of LMA (Loss of Metallic Area) during magnetic examinations of wire ropes. ln particular, it discusses and quantifies the accuracy of the standard LMA signal calibration procedure. It also quantifies the LMA averaging length of a selected magnetic apparatus and discusses the related phenomena.

 Author(s): Golosinski, T.S., Tytko, A.