Method and device for measuring wear on internal barrel surfaces

A device for measuring wear on an internal surface of a barrel, in particular a weapon barrels, with said device comprising

• a manipulator that can be inserted into the respective barrel, a control unit required for actuating the manipulator, and a signal evaluation device that is connected to the sensor:
• and wherein
• said manipulator includes a housing mounted for rotation around and along a longitudinal axis substantially corresponding to a barrel axis when installed in a barrel, an axial guide disposed in the housing along said longitudinal axis and fixedly connected to the housing for rotation therewith, and a light-spot triangulation sensor mounted on the axial guide for displacement in the longitudinal direction;
• a gap-type opening, which extends in the direction of the barrel axis, is provided in the housing and through which light emitted by a light source of the light-spot triangulation sensor can reach the outside and light reflected or scattered back by an inside surface of the barrel can reach a detector of the sensor, and
• a respective pivoting bracket is disposed at each end of the housing and in which the housing is mounted for rotation and with each of said brackets being provided with a plurality of radially displaceable holding elements for adjustably securing the housing to the inside surface of a barrel.