Device for the inspection of a gap

摘要

The inspection apparatus (20) has a sensor platform (26) that is attached to an elongated movable mount (23) which is moving in and out of a gap between two surfaces having one ferromagnetic surface. Several magnets (27) are embedded on surface of the mount so as to face away from the ferromagnetic surface and distributed over the length of the mount. The mount is contacted with the ferromagnetic surface by the magnets when the mount is inserted into the gap through an access opening (25).