Method and apparatus for detecting airlines in optical fibers
    1.
    发明授权
    Method and apparatus for detecting airlines in optical fibers 失效
    用于检测光纤中的航空公司的方法和装置

    公开(公告)号:US06717659B2

    公开(公告)日:2004-04-06

    申请号:US10172359

    申请日:2002-06-14

    IPC分类号: G01N2100

    CPC分类号: G01M11/33

    摘要: Defects in optical fibers are detected during manufacturing by using three bandpass filters to separate signals from a scattered light signal produced by a light source in a fiber measurement system. The separated signals include a clad diameter signal, a regular airline signal and a core airline signal. The regular airline signal is compared with the clad diameter signal to produce a normalized regular airline signal, and the core airline signal is compared with the clad diameter signal to produce a normalized core airline signal. The normalized regular airline signal and normalized core airline signal are monitored to determine if they increase, which indicates the presence of a defect in the optical fiber.

    摘要翻译: 通过使用三个带通滤波器在光纤测量系统中分离来自光源产生的散射光信号的信号,在制造过程中检测光纤中的缺陷。 分离的信号包括包层直径信号,常规航空公司信号和核心航空公司信号。 将常规航空公司信号与包层直径信号进行比较以产生归一化的正常航空公司信号,并将核心航空公司信号与包层直径信号进行比较以产生归一化的核心航空公司信号。 监控归一化的正常航空公司信号和归一化的核心航空公司信号,以确定它们是否增加,这表明光纤中存在缺陷。

    Methods and apparatuses for controlling optical fiber primary coating diameter
    3.
    发明授权
    Methods and apparatuses for controlling optical fiber primary coating diameter 有权
    控制光纤初级涂层直径的方法和装置

    公开(公告)号:US06923023B2

    公开(公告)日:2005-08-02

    申请号:US10261908

    申请日:2002-10-01

    IPC分类号: C03C25/12 C03B37/07

    CPC分类号: C03C25/12

    摘要: Methods and apparatuses estimate and control optical fiber primary coating diameter for wet-on-wet optical fiber manufacturing. The primary coating diameter for a particular length of optical fiber is calculated based upon a measurement of the weight of primary and/or secondary coating material consumed during optical fiber manufacturing. Control of the primary coating diameter is effected by a coating controller which can increase or decrease the primary coating diameter through control of glass temperature, coating viscosity and/or other parameters during wet-on-wet fiber manufacture.

    摘要翻译: 方法和设备估算和控制湿式湿式光纤制造的光纤初级涂层直径。 基于在光纤制造期间消耗的初级和/或次级涂层材料的重量的测量来计算特定长度的光纤的初始涂层直径。 初级涂层直径的控制由涂层控制器实现,涂层控制器可以通过在湿湿式纤维制造期间控制玻璃温度,涂层粘度和/或其它参数来增加或减少初涂层直径。

    Systems and methods for automatic and continuous coating supply during optical fiber production
    7.
    发明授权
    Systems and methods for automatic and continuous coating supply during optical fiber production 有权
    光纤生产期间自动连续涂层供应的系统和方法

    公开(公告)号:US07001466B2

    公开(公告)日:2006-02-21

    申请号:US10326475

    申请日:2002-12-20

    IPC分类号: B05C11/10

    摘要: Systems and methods are disclosed for an automatic and continuous supply of coating material to a coating applicator in optical fiber fabrication. The present invention switches from one coating reservoir to another by way of a transitional period in which both coating reservoirs are supplying coating material to the coating applicator. For example, while an in-use reservoir is supplying the coating material to the coating applicator, a standby reservoir is being filled, settled to off gas air bubbles and then slowly pressurized. A sized orifice is used to slowly bleed off pressure from the in-use reservoir at a rate that does not allow the pressure in the in-use reservoir from falling out of a desired pressure range. When the in-use reservoir is substantially emptied of coating material and the pressures in both reservoirs are substantially equalized, then both reservoirs simultaneously supply coating material to the coating applicator for a period of time before switching completely over to the standby reservoir.

    摘要翻译: 公开了用于在光纤制造中自动连续地向涂布器供应涂料的系统和方法。 本发明通过两个涂层储存器向涂布器供应涂料的过渡时段,从一个涂料储存器切换到另一个涂料储存器。 例如,当使用中的储存器将涂料供应到涂布器时,备用储存器被填充,沉降到气体气泡中,然后缓慢加压。 使用尺寸的孔口以不允许使用中储存器中的压力从期望压力范围脱落的速率缓慢地从使用中的储存器中排出压力。 当使用中的储存器基本上被清除了涂层材料并且两个储存器中的压力基本相等时,则两个储存器同时将涂层材料提供给涂布器一段时间,直到完全切换到备用储存器。

    Balanced dual-gap protector
    8.
    发明授权
    Balanced dual-gap protector 失效
    平衡双隙保护器

    公开(公告)号:US4558390A

    公开(公告)日:1985-12-10

    申请号:US561886

    申请日:1983-12-15

    IPC分类号: H01T1/22 H02H9/06

    CPC分类号: H01T1/22

    摘要: Disclosed is a dual-gap protector wherein both gaps will break down essentially simultaneously when a pulse of either polarity having a sufficient magnitude appears. An annular electrode is provided in the housing so as to form parallel gaps with respective end electrodes. The electrodes include a surface coating of a photoemissive and/or thermionic material so that light emission or heat resulting from the breakdown of one gap will influence the breakdown of the other gap.

    摘要翻译: 公开了一种双隙保护器,其中当具有足够大小的任一极性的脉冲出现时,两个间隙基本上同时分解。 环形电极设置在壳体中,以便与相应的端电极形成平行的间隙。 电极包括光发射和/或热离子材料的表面涂层,使得由一个间隙的击穿产生的光发射或热量将影响另一个间隙的击穿。

    Method and apparatus for making improved optical fiber preforms and optical fiber therefrom
    10.
    发明授权
    Method and apparatus for making improved optical fiber preforms and optical fiber therefrom 有权
    用于制造改进的光纤预制件和其光纤的方法和装置

    公开(公告)号:US06701753B2

    公开(公告)日:2004-03-09

    申请号:US09781515

    申请日:2001-02-11

    IPC分类号: C03B37025

    摘要: Embodiments of the invention include a method and apparatus for making optical fiber preforms and optical fiber. The method includes the steps of positioning an overclad tube around a preform core rod, heating the overclad tube along the length thereof in the presence of a pressure gradient to collapse onto the preform core to form the overclad optical fiber preform, and adjusting the radial size of a heated portion of the preform core rod and/or the overclad tube to actively match the radial dimensions of the preform core rod along the length thereof with corresponding portions of the overclad tube. The active matching reduces variations in the physical dimensions of the preform core rod and/or the overclad tube, which improves transmission and other performance characteristics of fiber drawn from the created preform, e.g., by maintaining a relatively constant D/d ratio of the preform.

    摘要翻译: 本发明的实施例包括用于制造光纤预制棒和光纤的方法和装置。 该方法包括以下步骤:将包层管定位在预成型芯棒周围,在存在压力梯度的情况下沿着其长度加热外包层管,以塌缩到预成形芯上以形成外包层光纤预制件,并调节径向尺寸 预成型件芯棒和/或外包层管的加热部分,以将预型芯棒的径向尺寸与其外包层管的相应部分沿其长度主动匹配。 主动匹配减少了预制棒芯棒和/或外包层管的物理尺寸的变化,这改进了从所产生的预制件中拉出的纤维的透射和其它性能特征,例如通过保持预成型件的相对恒定的D / d比 。