Patent ID: 9110036
Filing Date: 2015-08-18
Classification: G01N

Abstract:
1. An eddy current non-destructive inspection assembly configured for inspecting the internal test surface of a first group of cavities during a first inspection session and a second group of cavities during a second inspection session, wherein the cavities in the first group have substantially the same first set of size and shape, and the cavities in the second group have substantially the same second set of size and shape, and the first set and the second sets of size and shape are different, and each group of cavities has its respective axial direction and cross-section plane; wherein the assembly comprises: wherein the first or the second series of cavities each has two respective ending walls which are substantially perpendicular to the respective axial direction of the respective cavities, and wherein the manipulator further comprises: a shaft transferring driving force from the driving handle along the axial direction, a shaft linear bearing keeping the shaft to move in the axial direction, and a swivel base having a least one pair of shoes, being pushed against one of the ending walls of one series of the cavities during one of the inspection sessions, wherein the linear bearing is affixed to the swivel base via a pivot so that when the swivel base is pushed snuggly against the one of the ending walls, there is a predetermined degree of freedom of movement between the shaft and the swivel base in a plane parallel to the axial direction and perpendicular to the ending walls, allowing a degree of tolerance in perpendicularity between a specific dovetail cavity and the ending walls.