公开(公告)号：US5131745A

公开(公告)日：1992-07-21

申请号：US608256

申请日：1990-11-02

申请人： Daniel E. Whitney ,  Richard W. Metzinger ,  J. Kevin Champagne

发明人： Daniel E. Whitney ,  Richard W. Metzinger ,  J. Kevin Champagne

IPC分类号： B24B19/22 ,  G01B11/27 ,  G02B6/38 ,  G02B6/42

CPC分类号： G01B11/272 ,  B24B19/226 ,  G02B6/3843 ,  G02B6/4203 ,  G02B6/3863

摘要： A positioning technique for grinding a conical tip on a fiber optic element includes rotatably mounting an end of the fiber optic element to be conically ground; detecting orbital motion of the optical axis of the fiber optic element about the mechanical axis of rotation; and adjusting the optical axis relative to the axis of rotation to minimize the orbital motion of the optical axis.

摘要翻译： 用于研磨光纤元件上的锥形尖端的定位技术包括可旋转地安装光纤元件的端部以进行锥形研磨; 检测光纤元件的光轴围绕机械旋转轴的轨道运动; 并且相对于旋转轴线调整光轴以最小化光轴的轨道运动。

公开(公告)号：US5121460A

公开(公告)日：1992-06-09

申请号：US648726

申请日：1991-01-31

申请人： Richard P. Tumminelli ,  Farhad Hakimi

发明人： Richard P. Tumminelli ,  Farhad Hakimi

IPC分类号： H01S3/067 ,  H01S3/08 ,  H01S3/094

CPC分类号： H01S3/06708 ,  H01S3/06729 ,  H01S3/0804 ,  H01S3/094003 ,  H01S3/094007

摘要： An optical fiber includes a multimode primary core having an index or refraction N.sub.1 and doped with a material providing optical gain; the cladding surrounding the core having an index of refraction N.sub.2 ; and a secondary core doped with an absorbent material for providing optical loss in unwanted modes.

摘要翻译： 光纤包括具有折射率或折射率N1并掺杂有提供光学增益的材料的多模初级芯片; 围绕芯的包层具有折射率N 2; 以及掺杂有用于在不想要的模式中提供光学损耗的吸收材料的次级芯。

公开(公告)号：US5151877A

公开(公告)日：1992-09-29

申请号：US630027

申请日：1990-12-19

申请人： Ciaran J. Brennan

发明人： Ciaran J. Brennan

IPC分类号： G11C11/22

CPC分类号： G11C11/22

摘要： A ferroelectric space charge capacitor memory system includes a ferroelectric space charge capacitor memory cell having two ferroelectric space charge capacitor memory devices; means for applying coercive write voltage to each of the memory devices to establish internal polarization fields and space charge regions of opposite polarity in each device, respectively; means for applying to each of the devices a bias voltage less than the coercive voltage at a rate slower than the rate of space charge formation to define a capacitive level representative of one of the polarization states; means for introducing to each of the devices a read signal at a rate faster than the rate of space charge formation, which together with the bias voltage is less than the coercive voltage; and means responsive to the read signal for indicating the difference in charge transferred by each memory device representing the logical state of the memory cell.

摘要翻译： 铁电空间电荷电容器存储器系统包括具有两个铁电空间电荷电容器存储器件的铁电空间充电电容器存储单元; 用于向每个存储器件施加矫顽写入电压以分别在每个器件中建立相反极性的内部极化场和空间电荷区的装置; 用于以比所述空间电荷形成速率慢的速率施加小于所述矫顽电压的偏置电压以限定表示所述极化状态之一的电容电平的装置; 用于以比空间电荷形成速率更快的速率向每个装置引入读取信号的装置，其与偏置电压一起小于矫顽电压; 以及响应于读取信号的装置，用于指示表示存储器单元的逻辑状态的每个存储器件传输的电荷差。

公开(公告)号：US5151277A

公开(公告)日：1992-09-29

申请号：US675819

申请日：1991-03-27

申请人： Edward Bernardon ,  Michael F. Foley

发明人： Edward Bernardon ,  Michael F. Foley

IPC分类号： B29C33/30 ,  B29C43/12 ,  B29C51/08 ,  B29C51/20 ,  B29C70/44

CPC分类号： B29C51/20 ,  B29C33/302 ,  B29C51/082 ,  B29C51/087 ,  B29C70/443 ,  B29C43/12

摘要： A reconfigurable fiber-forming resin transfer molding system including a sealed chamber with first and second spaced flexible diaphragms for holding a fiber workpiece and press and die mold surfaces for forming the fiber workpiece.

摘要翻译： 一种可重构纤维形成树脂传递模塑系统，包括具有用于保持纤维工件的第一和第二隔开的柔性隔膜的密封室，以及用于形成纤维工件的压模和模具模具表面。

公开(公告)号：US5077637A

公开(公告)日：1991-12-31

申请号：US412155

申请日：1989-09-25

申请人： Richard T. Martorana ,  Thomas D. Heimann ,  John Bimshas

发明人： Richard T. Martorana ,  Thomas D. Heimann ,  John Bimshas

IPC分类号： H05K7/20

CPC分类号： H05K7/20545 ,  Y10S428/901 ,  Y10T428/30

摘要： A solid state, directional, thermal cable including a bundle of elongated, flexible, carbon fibers having a high thermal conductivity in at least the longitudinal direction. Couplings at each end of the cable, bind together the fiber bundle and thermally engage the cable with objects having different temperatures, for transferring heat between the objects. The thermal cable may be used with a frame which supports a device to or from which heat is to be transferred. The thermal cable engages with the frame at a first region proximate the device, and with a second region remote from the device for transferring heat between the first and second regions. The heat transfer frame may include a composite material whose constituents have at least two different coefficients of thermal expansion, for establishing the overall coefficient of thermal expansion of the composite material. One of the constituents may have a negative coefficient of thermal expansion, and may be a carbon based material.

摘要翻译： 一种固态，定向的热电缆，包括至少在纵向方向上具有高导热性的一束细长的，柔性的碳纤维。 在电缆的每一端处的联轴器将纤维束结合在一起，并将电缆与具有不同温度的物体热接合，以在物体之间传递热量。 热电缆可以与支撑要传输热量的装置一起使用。 热电缆在靠近设备的第一区域处与框架接合，并且具有远离设备的第二区域，用于在第一和第二区域之间传递热量。 传热框架可以包括其组分具有至少两个不同的热膨胀系数的复合材料，用于建立复合材料的总体热膨胀系数。 成分之一可以具有负的热膨胀系数，并且可以是碳基材料。