Outer and Inner Diameter Measuring Apparatus and Method for Transparent Tube

摘要

This method is provided with a device to measure the inner and outer contactless transparent tube. According to the present invention, with respect to a section perpendicular to the longitudinal direction of the transparent tube section irradiating a light beam on the true straight line inclined at an angle in a transparent tube , the tube is covered by obtaining a pattern of light beams refraction are formed , and by the tube extract information from the outer diameter obscured light beam pattern and extracting information from the light beam diameter is refracted by the patterns formed along the outer diameter and inner diameter of the tube to obtain , by calculation .