Method for measuring the thickness of a hollow vane wall

Details Method for measuring the thickness of a hollow vane wall Method for measuring the thickness of a hollow vane wall

G - Physics

01

B

G01B 7/06 (2006.01)

Patent

CA 2381864

An eddy current sensor (4) comprises two poles aligned in the same partition (3) extending direction located behind a wall (2) whereof the thickness is to be measured but which perturbs the measurements. The influence of the partitions (3) is reduced if the core (6) of the detector (4) comprises two poles aligned in the extending direction of the partitions (3) and if a logic system is used to correct the results obtained on the basis of preliminary results on a reference surface.

Un détecteur de courant de Foucault (4) comprend deux pôles alignés dans la direction d'extension de cloison (3) situés derrière une paroi (2) dont l'épaisseur doit être mesurée mais qui perturbe les mesures. L'influence des cloisons (3) est réduite si le noyau (6) du détecteur (4) comprend deux pôles alignés dans la direction d'extension des cloisons (3) et si un système logique est utilisé pour corriger les résultats obtenus en fonction de résultats préliminaires sur une surface de référence.

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