METHOD OF MEASURING LOCAL RADIUS OF CURVATURE OF ELASTICALLY DEFORMED REFERENCE BEAM AND DEVICE THEREFOR Russian patent published in 2016 - IPC G01B11/08 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment in the field of metrological assurance standards of relative deformation, which are used for calibration of strain gauges or extensometers. Technical result consists in reduction of weight and dimensions of deformation control system, when the same value ranges of deformation (±0.003) and high measurement accuracy, and solving a unified load and control, making it possible to work with reference beam with wide range of curvature. It is achieved by the fact that the method of measuring local radius of curvature elastically deformed reference beam on the measured surface is installed a device with two rotary shoes resting on the surface of the four reference elements, and the body is represented by turning the shoe, composed of plate with fork-shaped cut along the axis of symmetry, and the other rotary shoe is made in the form of a plate-tab and placed on the same axis of symmetry in the cut plate-fork, note here that shoes articulated between a common rotation support, including sliding surface two precision balls fitted on both sides relative to the common axis of symmetry of the plates.

EFFECT: reduced weight and dimensions of deformation control system and high measurement accuracy.

2 cl, 3 dwg