FIELD: machine building.
SUBSTANCE: invention relates to machine building, in particular to sensors for measuring longitudinal displacements during stretching of samples from fabric-like materials. Sensor for measuring longitudinal displacements comprises a part movable relative to the sample and relative to the fixed parts of the sensor, four stops with a rounded surface for interaction with the surface of the analysed sample, which have a noticeable thickness and width and are elastically pressed to the surface of the sample. Stops are arranged in pairs on both sides of the sample in one section, and the other two stops move away from the first two stops in tension. Some of the stops are located relative to each other at a noticeable angle from 30° to 90°, movable part of sensor moves relative to fixed part of sensor by means of roller supports, on one of which there is a pointer indicator, which makes it possible to determine the angle of rotation of this support when the sample is stretched, plates from hard rubber are glued between the roller supports and mating parts.
EFFECT: providing the possibility of measuring longitudinal displacements during stretching of samples from fabric-like materials, wherein no power source is required.
1 cl, 6 dwg
