Interior surface measuring arrangement

摘要

The arrangement has a symmetrical construction allowing a measurement of two opposite points of an inside wall of a cavity at arbitrary heights. An abrupt downward movement of the work head (4) is reached through a spring mechanism, so that a wear-off mass is solved from an interior wall of a cylinder. The device pref. performs the steps of crude abrading, fine rubbing and pressurizing of the inside wall through the wear-off mass.