Abstract: The invention involves a set for measuring the linear strain of materials, comprising at least two measuring elements fitted with measuring blades with parallel axes of the measuring blades, attachable to the measured material, and a portable reading device with an impression surface made of a material with dimensional stability and strength lower than the strength of the material of the measuring elements and/or the portable measuring device. The measuring blades are fitted with fixtures in the center and the measuring elements are fitted with necks and a tapered end at the bottom; the measuring elements are attached to the surface of the measured material using a resin-based adhesive.

Abstract: The invention involves a set for measuring the linear strain of materials, comprising at least two measuring elements (1) fitted with measuring blades (2) with parallel axes of the measuring blades (2), attachable to the measured material, and a portable reading device (3) with an impression surface (4) made of a material with dimensional stability and strength lower than the strength of the material of the measuring elements (1) and/or the portable measuring device. The measuring blades (2) are fitted with fixtures (5) in the center and the measuring elements are fitted with necks (6) and a tapered end (7) at the bottom; the measuring elements (1) are attached to the surface of the measured material using a resin-based adhesive.