Method and device for detecting cracks in compressor blades

Details Method and device for detecting cracks in compressor blades Method and device for detecting cracks in compressor blades

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 21/00 (2006.01) F01D 21/04 (2006.01) G01H 1/00 (2006.01)

Patent

CA 2740101

A detection device for detecting cracks in compressor blades, having non-- contacting sensors distributed in several planes and disposed in the vicinity of the rotor detects cycle times of blades at the sensors and/or relative and absolute changes in a gap width between a blade and the compressor housing. The captured data are compared to corresponding reference data in a memory device and analyzed.

L'invention concerne un dispositif d'acquisition destiné à détecter les fissures sur des aubes mobiles d'un compresseur, avec des capteurs sans contact disposés dans différents plans dans l'environnement du rotor. Le dispositif recueille les instants de passage des aubes devant les capteurs et/ou les variations absolues et relatives de la largeur de l'espace entre une aube et le carter du compresseur. Les données recueillies sont comparées avec des données de référence correspondantes stockées dans un dispositif de mémoire et sont analysées.

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