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Drawing process only begins when operater threds this strands into coting dies.Diameter of the fiber during draw is controlled to 125 micorns within 1 micron tolerace. The rate for sampling the fiber is 750 times per second while the actual value of diameter is compared to 125 micron target. Drawing spedd is higher if the diameter is above than target diameter and vicerversa. After diameter case two layer coating is applied to the fiber with soft inner coating and hard outer coating which will be more disccuesd on coating for the protection of fiber in section below.
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_!1.jpg|border=1! _ Fig. 6. Drawing the fiber_ *_\[1\]_* |
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