Du Bolin. Application of laser to the measurement and control of optical fiber diameter[J]. Chinese Journal of Lasers, 1981, 8(12): 17
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This paper describes a laser scanning technique used for dynamic measurement of optical fiber diameter and a new point by point comparison-technique used for controlling optical fiber diameter. For optical fibers with outer diameters of 50μm to 250μm, the error of measurement is within ±0.5%. The results are displayed numerically and converted into simulative signals which control effectively the drawing velocity of a drawing machine, thereby ensuring the uniformity of fiber diameter.