ARRANGEMENT AND METHOD FOR NON DESTRUCTIVE MEASUREMENT OF WALL THICKNESS AND SURFACE SHAPES OF OBJECTS WITH AN INNER SURFACE

摘要

The invention relates to a method of carrying out measurements with penetrating radiation on a hollow object comprising at least one wall surrounding an inner space of the object, said wall comprising an inner surface and an outer surface, said method at least being carried out for determining a position and shape of at least a portion of the inner surface of the wall.