Apparatus for sintering a porous glass base material and a method therefor
    1.
    发明授权
    Apparatus for sintering a porous glass base material and a method therefor 有权
    用于烧结多孔玻璃基材的设备及其方法

    公开(公告)号:US06442978B1

    公开(公告)日:2002-09-03

    申请号:US09520966

    申请日:2000-03-08

    IPC分类号: C03B3707

    摘要: Apparatus (700) for sintering a glass base material (2) which is a base material for an optical fiber. The sintering apparatus (700) includes: a control unit which varies a condition for sintering the glass base material; and a furnace (12) which sinters the glass base material by heating the glass base material in an atmosphere of dehydration gas and inert gas. The control unit includes a drive source (3) which supplies the glass base material to the furnace at various speeds. The control unit includes a temperature control unit which controls the temperature of a heating source provided in the furnace.

    摘要翻译: 用于烧结作为光纤基材的玻璃基材(2)的设备(700)。 烧结装置(700)包括:控制单元,其改变用于烧结玻璃基材的状态; 以及通过在脱水气体和惰性气体的气氛中加热玻璃基材来烧结玻璃基材的炉(12)。 控制单元包括以各种速度将玻璃基材供应到炉的驱动源(3)。 控制单元包括控制设置在炉中的加热源的温度的温度控制单元。

    Sintering method and sintering apparatus of porous glass base material
    3.
    发明申请
    Sintering method and sintering apparatus of porous glass base material 审中-公开
    多孔玻璃基材的烧结方法和烧结装置

    公开(公告)号:US20070193306A1

    公开(公告)日:2007-08-23

    申请号:US10593268

    申请日:2005-03-07

    IPC分类号: C03B37/10 C03C25/10

    CPC分类号: C03B37/01446 C03B37/0146

    摘要: There are provided a sintering method and a sintering apparatus of a porous glass base material for sintering a porous glass base material to be dehydrated and vitrified into a transparent glass without causing core displacement and cross-sectional shape deformation. In detail, an aspect of the present invention is a sintering method of a porous glass base material for sintering a rod-like porous glass base material by hanging and moving the rod-like porous glass base material though a heating furnace. Here, the porous glass base material is lowered into a heating furnace heated to a sintering temperature, and after every part of the porous glass base material is moved through a preheated region extending from an upper edge of an insulating member to an upper edge of a heater in a heating furnace body in 4.5 hours or longer, the porous glass base material is sintered by the heater to be vitrified into a transparent glass.

    摘要翻译: 提供一种多孔玻璃基材的烧结方法和烧结装置,用于将要脱水和玻璃化的多孔玻璃基材烧结成透明玻璃而不引起芯部位移和横截面形状变形。 具体地说,本发明的一个方面是通过使棒状多孔玻璃基材通过加热炉悬挂移动的多孔玻璃基材的烧结方法。 这里,将多孔玻璃基材降低到加热到烧结温度的加热炉中,并且在多孔玻璃基材的每一部分移动通过从绝缘构件的上边缘延伸到上部边缘的预热区域 在加热炉体内加热4.5小时以上,多孔玻璃基材由加热器烧结成玻璃化成透明玻璃。

    Method for pulling-up a porous silica glass preform
    4.
    发明授权
    Method for pulling-up a porous silica glass preform 失效
    拉起多孔石英玻璃预制件的方法

    公开(公告)号:US5425795A

    公开(公告)日:1995-06-20

    申请号:US206522

    申请日:1994-03-04

    CPC分类号: C03B37/01486 Y02P40/57

    摘要: An improvement is proposed in the process for the preparation of a porous silica glass preform as a precursor of optical fibers by the VAD method, in which fine silica particles produced by the flame hydrolysis of a silicon-containing compound are deposited on the lower end of a seed rod suspended at the lower end of a suspender rod rotated by a carriage in a vertical tubular reactor furnace to grow in the vertical direction. Instead of taking the fully grown porous preform out of the tubular furnace by pulling up as suspended on the suspender rod as is undertaken in the prior art, the seed rod is temporarily held by clamping with a holding device with disconnection from the suspender rod and the porous preform and seed rod are pulled up by a separate vertical driving device so that the overall height of the apparatus can be greatly decreased contributing to a reduction of the manufacturing cost of optical fibers of silica glass.

    摘要翻译: 在通过VAD方法制备作为光纤的前体的多孔石英玻璃预制体的方法中提出了一种改进,其中通过含硅化合物的火焰水解产生的二氧化硅微粒沉积在 悬挂在悬架杆的下端的种子棒,其由垂直管式反应器炉中的托架旋转,以在垂直方向上生长。 代替如现有技术中那样将悬浮在吊杆上的方式将管状炉中的完全生长的多孔预成型件从管状炉中取出,通过夹持装置暂时保持种棒,该保持装置与吊杆断开,并且 通过单独的垂直驱动装置将多孔预成型件和种子杆拉起,从而能够大大降低装置的整体高度,有助于降低石英玻璃的光纤的制造成本。

    Preparation of a preform of optical fibers
    5.
    发明授权
    Preparation of a preform of optical fibers 失效
    制备光纤预制棒

    公开(公告)号:US5366531A

    公开(公告)日:1994-11-22

    申请号:US131450

    申请日:1993-10-04

    摘要: An improvement is proposed in the method for the flame hydrolysis of a silicon-containing gas, e.g., silicon tetrachloride, to produce fine silica particles to be deposited on a substrate in a process for the preparation of a silica glass preform of optical fibers by using a fivefold concentric multiplex-tube burner nozzle. In contrast to the conventional way for the flame hydrolysis in which the center or first nozzle opening of the burner serves for ejection of a mixture of silicon tetrachloride and oxygen and hydrogen is ejected from the third nozzle opening while argon is ejected from the second nozzle opening inbetween, the gas ejected from the second nozzle opening is, instead of argon alone, a mixture of oxygen and argon in a specified mixing proportion so that deposition of silica particles on the nozzle end can be prevented even when the feed rate of silicon tetrachloride is relatively high.

    摘要翻译: 在用于制备光纤石英玻璃预制棒的方法中,在含硅气体例如四氯化硅的火焰水解方法中提出了一种改进方法,以制备沉积在基材上的细二氧化硅颗粒 一个五重同心多重管燃烧器喷嘴。 与用于火焰水解的常规方法相比,其中燃烧器的中心或第一喷嘴开口用于喷射四氯化硅和氧气的混合物,并且从第三喷嘴开口喷射氢气,同时从第二喷嘴开口喷出氩气 在其间,从第二喷嘴开口排出的气体是以指定的混合比例代替仅含氩和氩的混合物,从而即使当四氯化硅的进料速率为 比较高

    Method for the preparation of a porous silica glass preform for optical
fibers
    6.
    发明授权
    Method for the preparation of a porous silica glass preform for optical fibers 失效
    制备光纤多孔石英玻璃预制件的方法

    公开(公告)号:US6145344A

    公开(公告)日:2000-11-14

    申请号:US284902

    申请日:1994-08-02

    摘要: Proposed is an improvement in the VAD process for the preparation of a porous silica glass preform for double-core optical fibers by using three oxyhydrogen flame burners installed one above the other in a flame hydrolysis chamber in which a porous silica glass body consisting of the center core portion formed by the lowermost burner, side core portion formed by the middle burner and the cladding layer formed by the uppermost burner is gradually pulled up as it grows under rotation. Different from conventional procedures in which the extension of the nozzle axis of each of the burners intersects with the rotation axis of the growing body, the extension of the nozzle axis of the middle burner for the side core is displaced in a horizontal direction by a limited distance not to intersect nor to be in parallel with the rotation axis in the invention. By this means, an improvement is obtained in the uniformity of distribution of the refractive index in the side core which otherwise is remarkably disordered.

    摘要翻译: 提出了通过在火焰水解室中使用三个氢氧焰燃烧器一起制备用于双芯光纤的多孔石英玻璃预制件的VAD方法的改进,其中由中心组成的多孔石英玻璃体 由最下面的燃烧器形成的芯部,由中间燃烧器形成的侧芯部和由最上面的燃烧器形成的包覆层随着其旋转而逐渐上升。 与常规方法不同,其中每个燃烧器的喷嘴轴线的延伸与生长体的旋转轴线相交,用于侧芯的中间燃烧器的喷嘴轴线的延伸在水平方向上被限制 在本发明中不相交或不与旋转轴平行的距离。 通过这种方式,在侧核中折射率分布的均匀性得到改善,否则其显着无序。

    Method of lowering and raising a optical fiber preform in a sintering
furnace
    7.
    发明授权
    Method of lowering and raising a optical fiber preform in a sintering furnace 失效
    在烧结炉中降低和提高光纤预制件的方法

    公开(公告)号:US5423898A

    公开(公告)日:1995-06-13

    申请号:US207541

    申请日:1994-03-07

    摘要: An improvement is proposed in the apparatus and method for the preparation of a transparent silica glass preform as a precursor of optical fibers by sintering and vitrifying a porous silica glass preform in a sintering furnace as vertically suspended at the lower end of a suspender rod rotated by a carriage. Different from the conventional process in which the porous preform is lowered into the sintering furnace and the transparent preform after vitrification is pulled up out of the furnace as suspended at the lower end of the suspender rod throughout, a separate vertical driving device is provided along with a horizontal driving device for the carriage so that the effective up-and-down stroke of the carriage can be greatly reduced and the apparatus as a whole can be by far more compact contributing to the reduction of the manufacturing costs of the optical fibers of silica glass.

    摘要翻译: 在用于制备作为光纤前体的透明石英玻璃预制件的设备和方法中,提出了一种改进,该方法是将烧结炉中的多孔石英玻璃预制件在垂直悬挂在悬挂杆旋转的下端 一个马车 与将多孔预成型体下降到烧结炉中的常规方法不同,玻璃化后的透明预成型件全部被悬挂在吊杆的下端被拉出炉外,分开设置垂直驱动装置 用于滑架的水平驱动装置,使得能够大大减少滑架的有效上下冲程,整个装置可以更加紧凑,有助于降低二氧化硅光纤的制造成本 玻璃。

    Serial data communication system and serial data communication method
    8.
    发明授权
    Serial data communication system and serial data communication method 有权
    串行数据通信系统和串行数据通信方式

    公开(公告)号:US08972638B2

    公开(公告)日:2015-03-03

    申请号:US12678318

    申请日:2008-09-17

    申请人: Hiroyuki Koide

    发明人: Hiroyuki Koide

    摘要: When transmitting serial data from a master device to a slave device, it is possible to promptly detect a communication error if any occurs. Serial data transmitted from the master device to the slave device has two or more continuous bytes of dummy data having an identical structure. When the slave device recognizes the dummy data, communication error processing is executed. Assume that the serial data is shifted by an affect of a noise. In this case, “a text end control code (ETX)” is also shifted and the serial data cannot be recognized and no data reception end process is executed. However, during a period after this, a part of the first dummy data and a part of the second dummy data are received and one dummy data is recognized. Thus, the slave device can promptly execute the communication error processing.

    摘要翻译: 当从主设备向从设备发送串行数据时,如果发生任何异常,可以及时检测通信错误。 从主设备发送到从设备的串行数据具有两个或更多个具有相同结构的连续字节的虚拟数据。 当从设备识别出虚拟数据时,执行通信错误处理。 假设串行数据被噪声的影响移位。 在这种情况下,“文本结束控制码(ETX)”也被移位,串行数据不能被识别,并且不执行数据接收结束处理。 然而,在此之后的一段时间中,接收到第一伪数据的一部分和第二伪数据的一部分,并且识别出一个伪数据。 因此,从设备可以迅速地执行通信错误处理。

    Method of manufacturing optical fiber base material and apparatus of the same
    9.
    发明授权
    Method of manufacturing optical fiber base material and apparatus of the same 有权
    制造光纤基材的方法及其装置

    公开(公告)号:US08701447B2

    公开(公告)日:2014-04-22

    申请号:US12341538

    申请日:2008-12-22

    IPC分类号: C03B37/12

    CPC分类号: C03B37/01446 C03B37/0146

    摘要: A method of manufacturing an optical fiber base material includes: forming a porous glass base material by depositing glass particles; providing a vessel which employs a composite tube, the composite tube including a portion formed by jacketing a first quartz glass containing aluminum equal to or less than 0.01 ppm with a second quartz glass containing aluminum equal to or more than 15 ppm; introducing dehydration reaction gas and inert gas into the vessel; heating the jacketed portion in the vessel which contains the dehydration reaction gas and the inert gas; and inserting the porous glass base material into the heated vessel to dehydrate and sinter the porous glass base material.

    摘要翻译: 制造光纤基材的方法包括:通过沉积玻璃颗粒形成多孔玻璃基材; 提供采用复合管的容器,所述复合管包括通过用包含等于或大于15ppm的铝的第二石英玻璃将含有等于或小于0.01ppm的铝的第一石英玻璃护套形成的部分; 将脱水反应气体和惰性气体引入容器中; 加热含有脱水反应气体和惰性气体的容器中的夹套部分; 并将多孔玻璃基材插入加热的容器中以使多孔玻璃基材脱水并烧结。

    METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL AND APPARATUS OF THE SAME
    10.
    发明申请
    METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL AND APPARATUS OF THE SAME 审中-公开
    制造光纤基材的方法及其设备

    公开(公告)号:US20090100876A1

    公开(公告)日:2009-04-23

    申请号:US12341324

    申请日:2008-12-22

    CPC分类号: C03B37/0146

    摘要: A method of manufacturing an optical fiber base material includes: forming a porous glass base material by depositing glass particles; providing a synthetic quartz glass vessel at least partly made of quartz glass which contains aluminum equal to or less than 0.01 ppm; introducing dehydration reaction gas and inert gas into the vessel; heating a portion made of quartz glass which contains aluminum equal to or less than 0.01 ppm in the vessel that contains the dehydration reaction gas and the inert gas; and inserting the porous glass base material into the heated vessel to dehydrate and sinter the porous glass base material.

    摘要翻译: 制造光纤基材的方法包括:通过沉积玻璃颗粒形成多孔玻璃基材; 提供至少部分由含有等于或小于0.01ppm的铝的石英玻璃制成的合成石英玻璃容器; 将脱水反应气体和惰性气体引入容器中; 在含有脱水反应气体和惰性气体的容器中加热含有等于或小于0.01ppm的铝的石英玻璃制成的部分; 并将多孔玻璃基材插入加热的容器中以使多孔玻璃基材脱水并烧结。