METHOD FOR DETECTING SURFACE BREAKING DEFECTS IN THE HARDENED SURFACE OF A BEARING COMPONENT, ESPECIALLY OF A BEARING OF A WIND TURBINE

Method for detecting surfaces breaking defects in the hardened surface of a bearing component (2), especially of a bearing of a wind turbine, whereby the surface (2) is scanned with a detecting device (1) comprising an array (8) of coils (9, 9a, 9b) with at least one coil (9, 9a, 9b) being controlle...

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Bibliographische Detailangaben
Hauptverfasser:	ELMOSE, Soeren Forbech, PEDERSEN, Björn
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	Method for detecting surfaces breaking defects in the hardened surface of a bearing component (2), especially of a bearing of a wind turbine, whereby the surface (2) is scanned with a detecting device (1) comprising an array (8) of coils (9, 9a, 9b) with at least one coil (9, 9a, 9b) being controlled as a transmitting coil T generating a magnetic field inducing an eddy current in the surface (2) and at least one coil (9, 9a, 9b) being controlled as a receiving coil (R) measuring a magnetic field generated by the eddy current and providing respective measurement signals, and a control device (6) for processing the measurement signals.