DEVICE AND METHOD FOR MEASURING THICKNESS OF GLASS MATERIAL

摘要

PROBLEM TO BE SOLVED: To nondestructively measure the thickness of each layer of a double- glazing material. SOLUTION: An ultraviolet ray emitted from a light source 2 gets incident into a collimator lens 3 to be brought into parallel light, and gets into a double- glazing material 1 at 45 deg. of incident angle. Light scattered in ranges of both end faces A-C of the double glazing material 1 is imaged by an imaging lens 5, and is received by a CCD 6 (charge coupled device). Intensity of the scattered light in the thickness direction of the double glazing material 1 is input into an operation part 7 to find a thickness of the first glass layer 1a.