Device for measuring the evolution of a crack present on a structure

Abstract

Device for measuring the evolution of a crack present on a structure. The invention relates to a device for measuring the evolution of a crack (22) present on a structure (20), said measuring device comprising at least two rollers (26, 28, 28') configured to be fixed to the structure (20) on either side of the crack (22), and at least one caliper (34) which has, at each of the contact surfaces (S38.1, S38.2) of its fixed and movable jaws (38.1, 38.2), a housing (40.1, 40.2) configured to receive at least a portion of a roller (26, 28, 28'). The invention also relates to a method for measuring the evolution of a crack using said measuring device. Figure 2

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