公开(公告)号：US20140049810A1

公开(公告)日：2014-02-20

申请号：US13586634

申请日：2012-08-15

申请人： Timothy McComb ,  Fabio Di Teodoro

发明人： Timothy McComb ,  Fabio Di Teodoro

IPC分类号： H01S3/067

CPC分类号： H01S5/005 ,  H01S3/0057 ,  H01S3/11 ,  H01S3/2333 ,  H01S5/50

摘要： A system for generating a shaped optical pulse is disclosed. The system includes a master oscillator for generating an initial optical pulse, which is then directed to a semiconductor optical amplifier to amplify a portion of the initial optical pulse. The amplified pulse is reflected from a fiber Bragg grating to spectrally clean the amplified pulse and the reflected portion is returned back through the semiconductor optical amplifier. The semiconductor optical amplifier is activated a second time to amplify the reflected portion of the pulse. The time delay between the two activations of the semiconductor optical amplifier is selected to generate an output pulse with desired duration and/or amplitude profile over time.

摘要翻译： 公开了一种用于产生成形光脉冲的系统。 该系统包括用于产生初始光脉冲的主振荡器，然后将其引导至半导体光放大器以放大初始光脉冲的一部分。 放大的脉冲从光纤布拉格光栅反射，以光谱地清洁放大的脉冲，反射部分通过半导体光放大器返回。 半导体光放大器第二次被激活以放大脉冲的反射部分。 选择半导体光放大器的两次激活之间的时间延迟以随时间产生具有期望的持续时间和/或幅度分布的输出脉冲。

公开(公告)号：US4379261A

公开(公告)日：1983-04-05

申请号：US185968

申请日：1980-09-10

申请人： Kenneth M. Lakin

发明人： Kenneth M. Lakin

IPC分类号： G01N27/90 ,  G01R33/12

CPC分类号： G01N27/904

摘要： An eddy current type of inspection device having input signal coils on cores radially arranged around a center and having outer ends of the cores which rest against a surface of a metal assembly to be tested for defects. The input coils are energized by an AC signal of different phase for each respective coil so that a rotating magnetic field is produced in the assembly being tested. An output sensor coil is mounted at the center of the tester immediately adjacent to such test surface for coupling out a signal induced from the rotating field. A specific embodiment has three coils physically spaced 120.degree. apart, for energizing by a three-phase power source.

摘要翻译： 一种涡流型检查装置，其具有围绕中心径向布置的芯上的输入信号线圈，并且具有芯的外端，其抵靠待测试的缺陷的金属组件的表面。 输入线圈通过每个相应线圈的不同相位的AC信号通电，使得在被测组件中产生旋转磁场。 输出传感器线圈安装在测试仪的中心，紧邻这种测试表面，用于耦合出从旋转场引起的信号。 具体实施例具有物理间隔120°的三个线圈，用于通过三相电源供电。

公开(公告)号：US3882731A

公开(公告)日：1975-05-13

申请号：US38424673

申请日：1973-07-31

申请人： NORTHROP CORP

发明人： KONING MENNO G

IPC分类号： G01C19/42 ,  G01P1/00 ,  G01P15/13 ,  G01P15/14 ,  G01P15/08 ,  G01C19/28

CPC分类号： G01P1/006 ,  G01C19/42 ,  G01P15/132 ,  G01P15/14 ,  Y10T74/1275

摘要： A correction means for offsetting the effects of varying temperature on the torquer scale factor in a gyroscope, accelerometer, or similar input function measuring instrument having a torque-to-balance feedback servo loop. The correction means comprises an electronic correction network configured in the servo loop of an input function measuring instrument for generating a signal which is a measure of the desired input function and is substantially independent of any change in the torquer scale factor over a specified temperature range.

摘要翻译： 用于在具有扭矩平衡反馈伺服环路的陀螺仪，加速度计或类似的输入功能测量仪器中抵消变化温度对陀螺仪比例因子的影响的校正装置。 校正装置包括配置在输入功能测量仪器的伺服回路中的电子校正网络，用于产生作为所需输入功能的量度的信号，并且基本上与指定温度范围内的托盘比例因子的任何变化无关。

公开(公告)号：US3870839A

公开(公告)日：1975-03-11

申请号：US35307973

申请日：1973-04-20

申请人： NORTHROP CORP

发明人： ALMICH CLARENCE L ,  POLK JR JACK D ,  AULICK ROBERT A

IPC分类号： H01B3/40 ,  H01R12/71 ,  H01R33/76

CPC分类号： H01R12/724

摘要： A printed circuit board connector with right-angle pins therein having drilled holes which are aligned with one leg of the pins internally of the body, removing a section of the pin and thus causing an electrical gap or open circuit. A set screw is threaded into each hole to close the circuit when screwed in to contact the severed end of the pin leg. When any one of the plurality of set screws is backed out a short distance, the screw side still contacts one of the pin legs but the screw end separates from the other pin leg to cause a pre-faulted open circuit to be diagnosed by service trainees. The same circuit board can be used to provide any of several faults by selecting which screw to loosen.

摘要翻译： 其中具有直角销的印刷电路板连接器具有与主体内部的销的一条腿对准的钻孔，去除销的一部分，从而导致电气间隙或开路。 拧入每个孔中的一个固定螺丝，以便拧紧电路以接触销脚的切断端。 当多个固定螺钉中的任何一个固定螺钉退出短距离时，螺钉侧仍接触其中一个销腿，但是螺钉端与另一个销脚分离，导致服务受训者诊断出故障前的开路 。 通过选择哪个螺丝松动，可以使用相同的电路板来提供任何几个故障。

公开(公告)号：US3864184A

公开(公告)日：1975-02-04

申请号：US39059573

申请日：1973-08-22

申请人： NORTHROP CORP

发明人： CRANDALL WALTER E ,  MILLS GEORGE J ,  BROWN GARY G

IPC分类号： B32B31/16

CPC分类号： B29C70/28 ,  Y10T428/24058

摘要： Strips or sheets of material comprising filaments impregnated in a binder material are stressed in a stressing machine to a sufficient degree to cuase a number of the filaments to break. The strips or sheets are then layered and molded together to form a laminated composite. The composite material so formed is found to have significantly improved structural characteristics.

摘要翻译： 包含浸渍在粘合剂材料中的长丝的材料片或片材在应力机中受到足够的程度的压制以使多个细丝断裂。 然后将条或片层叠并模制在一起以形成层压复合材料。 发现如此形成的复合材料具有显着改善的结构特征。

公开(公告)号：US3832023A

公开(公告)日：1974-08-27

申请号：US33022473

申请日：1973-02-07

申请人： NORTHROP CORP

发明人： FAIRBANK W

IPC分类号： F16C33/38

CPC分类号： F16C33/3856 ,  F16C19/06 ,  F16C33/3806

摘要： A ball-bearing retainer for suppressing gross oscillations of the retainer, balls, and raceways of high speed bearings. The retainer has a generally cylindrical shape and has a plurality of ball pockets. It is designed for insertion between two relatively rotating members which have confronting coaxial cylindrical surfaces. These surfaces may be formed integrally with the rotating members themselves or may be raceways placed between the rotating members for accommodating the balls held in the retainer. Formed upon a surface of the retainer and extending toward one or the other of the relatively rotating members is a plurality of lands or portions extending radially from the retainer. The lands are three in number symmetrically disposed about the inner or outer peripheral walls of the retainer. The centers of the lands are a nominal 120* apart and each land subtends an angle of 30* or less. Clearence between the surface of the lands and the confronting surface of one of the rotating members is typically of the order of tens of thousandths of an inch.

摘要翻译： 用于抑制高速轴承的保持架，滚珠和滚道的大的振动的滚珠轴承保持架。 保持器具有大致圆柱形形状并且具有多个球窝。 它被设计用于插入在具有面对同轴圆柱形表面的两个相对旋转的构件之间。 这些表面可以与旋转构件本身一体地形成，或者可以是放置在旋转构件之间的滚道，用于容纳保持在保持器中的球。 形成在保持器的表面上并朝向相对旋转的构件中的一个或另一个延伸的是从保持器径向延伸的多个平台或部分。 在保持器的内周壁或外周壁上围绕三个对称地布置。 土地中心的标称距离为120°，每个地面的角度为30°以下。 平台的表面与其中一个旋转构件的相对表面之间的清晰度通常为数万分之一英寸。

公开(公告)号：US3816647A

公开(公告)日：1974-06-11

申请号：US24131772

申请日：1972-04-05

申请人： NORTHROP CORP

发明人： CHANG M ,  MCCRICKERD J

IPC分类号： G06E3/00 ,  G06K9/74 ,  H04N3/00

CPC分类号： G06E3/003 ,  G06K9/74

摘要： A light beam is generated by means of a narrow band collimated light source, and this light beam is modulated in accordance with an electrical input signal to be identified. The light beam is then optically scanned at a predetermined scanning rate to produce an optical image of the input signals against a time base. Light from this optical image is passed through a holographic reference transparency, which is a spatial filter corresponding to the Fourier transform of the image of known electrical signals, the light passing through the transparency being fed to a detector. Successive reference transparencies are utilized until correlation between the transparency and the input signal to be identified is indicated by a peaking of the detector output which is sensed by a correlation indicator.

公开(公告)号：US3769540A

公开(公告)日：1973-10-30

申请号：US3769540D

申请日：1970-10-26

申请人： NORTHROP CORP

发明人： THOMSON J

IPC分类号： H01J3/02 ,  H01J29/48 ,  H01J29/52 ,  H01J29/41

CPC分类号： H01J3/029 ,  H01J3/026 ,  H01J29/488 ,  H01J29/525

摘要： A plurality of strip filaments provide a source of electrons. A deflector electrode in the form of a flat dish is placed behind the filaments, and director electrodes which may be in the form of wire meshes, are placed forward of the filaments in the direction in which the electron flow is desired. Additional electrodes which may be in the form of narrow plates are placed along the ends of the filaments to compensate for fall-off in emission at the filament extremities. The various electrodes are positioned relative to the filaments and have potentials applied thereto such that the uniform distribution of electrons is provided over a predetermined area throughout which electron flow is desired.

摘要翻译： 多条带状细丝提供电子源。 扁平盘形式的偏转器电极放置在灯丝的后面，并且可以是丝网形式的导向器电极沿着需要电子流的方向放置在灯丝的前方。 沿着长丝的端部放置可以是窄板形式的附加电极，以补偿灯丝末端发射的脱落。 各种电极相对于长丝定位并且具有施加到其上的电位，使得电子的均匀分布被提供在期望电子流的整个预定区域上。

公开(公告)号：US3761932A

公开(公告)日：1973-09-25

申请号：US3761932D

申请日：1971-11-22

申请人： NORTHROP CORP

发明人： FUJIMOTO Y

IPC分类号： G01S1/30 ,  H04L7/00

CPC分类号： G01S1/308

摘要： A commutator generator for generating a plurality of station gating signals each having different gate time. A resettable binary counter provides output timing signals which are gated with the commutator generator output signals. Control circuitry selects the number of pulses to be elapsed before changing the state of an output counter, as well as resetting the binary counter. The output counter, in turn, is coupled to a decoder which produces the commutator generator output signals. A station selector initially sets the output counter to one of the station gates. Further, a station envelope is coupled to an envelope processor to initially enable the resettable counter.

摘要翻译： 一种换向器发生器，用于产生每个具有不同闸门时间的多个站选通信号。 一个可复位的二进制计数器提供输出定时信号，它们与换向器发生器的输出信号相通。 控制电路在更改输出计数器的状态之前选择要经过的脉冲数，以及复位二进制计数器。 输出计数器又耦合到产生换向器发生器输出信号的解码器。 站选择器最初将输出计数器设置为其中一个站门。 此外，站包络耦合到包络处理器以最初启用可复位计数器。

公开(公告)号：US3747896A

公开(公告)日：1973-07-24

申请号：US3747896D

申请日：1971-06-21

申请人： NORTHROP CORP

发明人： BOTZUM R

IPC分类号： B64D1/02 ,  B66D1/30

CPC分类号： B64D1/02

摘要： Apparatus for launching a vehicle-towed pyrotechnic type flare or similar structure incorporating means for launching, automatically braking, and enabling the flare to be jettisoned from the end of a line attached to a tow reel when desired.

摘要翻译： 用于发射车辆拖曳的烟火式火炬或类似结构的装置，其包括用于发射，自动制动并且使得能够在需要时从连接到曳带轮的线的端部排出火炬的装置。