FIELD: measurement technology; mechanical engineering, aviation, automotive industry, shipbuilding, space engineering, etc. SUBSTANCE: proposed device consists of rigid body with two roller supports. Additional indicators are mounted between supports at equal distances. All indicators are provided with photoelectric sensors for indication of any change in sensor readings. Photoelectric sensors are connected via engagement unit with computer for conversion of indicator readings into digital signal and transmission of this signal to computer. Last (in way of motion) roller is additionally provided with photoelectric sensor for indication of moments of complete turns of this roller by engagement unit. EFFECT: enhanced accuracy of determination of curvature radii and measurement of coordinates of points of smooth surface. 1 dwg
