System for measuring internal dimensions of a hollow shaft of an aeronautical turbomachine

摘要

The system has a tube-shaped measuring module (40) removably mounted on a support (31) such as axle, movable in translation along an axis of an internal cavity of an hollow shaft (1). The module has a mechanical sensing element for delivering signals corresponding to values and incorporates a memory for recording and storing the values. The mechanical sensing element is movable between a retracted position and a extension position by an electrical traction jack.