METHOD AND DEVICE FOR HOLDING A TOOL ASSEMBLY IN A CONSTANT POSITION RELATIVE TO A NON-PLANAR SURFACE, IN PARTICULAR FOR CONTACTLESS CHECKING

摘要

A method and a device for holding a tool assembly in a constant position relative to a non-planar surface. For this purpose, the assembly comprises a plate (2) and a number of acoustic sensors (11, 12, 13, 14, 15) mounted thereon. The attitude of the plate may be adjusted by means of a gimbal system (5-7) enabling the plate to be pivoted (arrows 6 and 8) so that each acoustic sensor remains at an approximately constant distance (D) away from a corresponding area on the component (S) and the sensor axis remains approximately perpendicular to said area. Contactless checking of components with complex surfaces may thus be performed.