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    • 5. 发明授权
    • Apparatus for producing optical fiber
    • 光纤制造装置
    • US4123242A
    • 1978-10-31
    • US815447
    • 1977-07-13
    • Katsuyuki ImotoYoshitaka TakasakiMasao Sumi
    • Katsuyuki ImotoYoshitaka TakasakiMasao Sumi
    • C03B37/027C03B37/025C03B37/029C03B37/03G02B6/00G05D5/00G05D5/03C03B37/02
    • C03B37/032C03B37/0253C03B37/029G05D5/03C03B2205/90C03B2205/91C03B2205/98
    • Apparatus for producing an optical fiber including apparatus for heating an optical fiber preform, apparatus for drawing out the optical fiber from the optical fiber preform whose fore end part has been made molten by the heating and for taking up the drawn out fiber, apparatus for causing a gas to flow along the outer peripheral surface of the molten part of the optical fiber preform, and apparatus for controlling both the flow rate of the gas and the drawing-out speed of the optical fiber according to a fluctuation in the diameter of the optical fiber. The controlling apparatus includes (i) a fiber diameter detector and a fiber diameter measuring device which detect and measure the diameter of the optical fiber drawn out, (ii) a fiber diameter controlling circuit which receives an output of the fiber diameter measuring device and a reference value for specifying a fiber diameter and which compares them so as to deliver an output for controlling the fiber diameter, (iii) a gas flow rate controller which is driven by the output for controlling the fiber diameter, and (iv) a take-up speed controller which is driven by the output for controlling the fiber diameter. With this apparatus, the optical fiber of uniform diameter can be easily produced.
    • 用于制造光纤的设备,包括用于加热光纤预制棒的设备,用于从前端部分已经通过加热熔化并用于吸收拉出的光纤的光纤预制棒拉出光纤的设备,用于引起 沿着光纤预制棒的熔融部的外周面流动的气体,以及根据光学直径的波动的波动,控制气体的流量和光纤的拉出速度的装置 纤维。 控制装置包括:(i)光纤直径检测器和纤维直径测量装置,其检测并测量拉出的光纤的直径,(ii)光纤直径控制电路,其接收纤维直径测量装置的输出和 用于指定纤维直径的参考值,并将它们进行比较以输出用于控制纤维直径的输出;(iii)由用于控制纤维直径的输出驱动的气体流量控制器,以及(iv) 上升速度控制器由用于控制纤维直径的输出驱动。 通过该装置,能够容易地制造直径均匀的光纤。