DEVICE FOR MEASURING THE EVOLUTION OF A CRACK, IN PARTICULAR A BUILDING WALL

摘要

The invention relates to a device for measuring crack evolution on a wall or the like, comprising a measuring apparatus (20) comprising a body (21) carrying a measuring member (22); a target (11) having a base (12) for fixing the target to the wall on one side of the crack and having a target surface (15); and a plate (1) comprising a base (2) for fixing the plate to the wall on the other side of the crack and which carries positioning means (5) able to cooperate with positioning means (23) counterparts of the meter body so that when the meter is in place on the platen, the measuring member can cooperate with the target surface.