Cryogenic current limiting fuse
    1.
    发明申请
    Cryogenic current limiting fuse 有权
    低温限流保险丝

    公开(公告)号:US20050146817A1

    公开(公告)日:2005-07-07

    申请号:US10748437

    申请日:2003-12-31

    CPC classification number: H01H85/06 H01H85/46

    Abstract: A cryogenic current limiting fuse is disclosed together with a method of manufacturing a cryogenic current limiting fuse, the cryogenic current limiting fuse comprising a first cryogenic composite and a second cryogenic composite wherein at least one of the first and the second cryogenic composites has a non-linear and increasing resistivity with respect to at least one of temperature and current.

    Abstract translation: 公开了一种低温限流熔断器以及制造低温限流熔断器的方法,该低温限流熔断器包括第一低温复合材料和第二低温复合材料,其中第一和第二低温复合材料中的至少一个具有非限制性熔融物, 相对于温度和电流中的至少一个的线性和增加的电阻率。

    Surveillance system of a multi-wavelength ring network
    2.
    发明授权
    Surveillance system of a multi-wavelength ring network 失效
    多波长环网监控系统

    公开(公告)号:US5943148A

    公开(公告)日:1999-08-24

    申请号:US802483

    申请日:1997-02-20

    Abstract: This network, intended for the transmission of information in optical form, wavelength multiplexed, comprises nodes (N1, N2) linked to each other by at least one optical fiber (F1), at least one wavelength being treated in each node. The system comprises unit (OF1, OF2, OS1, OS2) for superimposing on the information, for at least one wavelength per node, a surveillance signal whose frequency is outside the transmission band and, in each node, a surveillance circuit (CS1, CS2) for sampling at least one part of the surveillance signals, elaborating surveillance information in function of this part and sending this information to the processing units of the network. Application in optical telecommunications.

    Abstract translation: 用于以光学形式传输波长多路复用的信息的网络包括通过至少一个光纤(F1)彼此链接的节点(N1,N2),每个节点中处理的至少一个波长。 该系统包括:单元(OF1,OF2,OS1,OS2),用于叠加在信息,对于每节点的至少一个波长,监视信号,其频率是传输频带之外,并且在每一个节点,监视电路(CS1,CS2 )对至少一部分监控信号进行采样,详细说明本部分功能的监控信息,并将该信息发送给网络处理单元。 光通信应用。

    Ultrasonic characterization of polymer melts under processing conditions
    3.
    发明授权
    Ultrasonic characterization of polymer melts under processing conditions 失效
    聚合物的超声波表征在加工条件下熔化

    公开(公告)号:US5433112A

    公开(公告)日:1995-07-18

    申请号:US952979

    申请日:1992-09-29

    Abstract: A method and apparatus for ultrasonically characterizing a polymer melt flowing in a predetermined direction between two opposed parallel surfaces spaced from one another to define a gap filled with polymer are disclosed. Ultrasonic pulses are propagated through the polymer melt between the two surfaces in a direction normal to the direction of flow for interaction with the polymer, the ultrasonic pulses having a duration such as to prevent successive echoes from overlapping with one another while reverberating between the two surfaces. The time delay between two echoes exiting from the polymer melt and generated from each pulse having interacted with the polymer is continuously monitored while simultaneously monitoring amplitude variations of the two echoes, to provide output signals representative of ultrasonic velocity and attenuation in the polymer melt. These output signals are processed to obtain data comprising ultrasonic velocity and attenuation values measured simultaneously as a function of time. The data is then processed to derive quantitative information relating to viscoelastic properties, structure or composition of the polymer, which can be used as input data in a closed-loop process control system.

    Abstract translation: 公开了一种用于超声波表征在预定方向上流动的聚合物熔体彼此间隔开的两个相对平行表面以限定填充有聚合物的间隙的方法和装置。 超声波脉冲沿着垂直于流动方向的方向在两个表面之间通过聚合物熔体传播,以与聚合物相互作用,超声波脉冲具有持续时间,以防止连续回波彼此重叠,同时在两个表面之间混响 。 连续地监测从聚合物熔体排出并从与聚合物相互作用的每个脉冲产生的两个回波之间的时间延迟,同时监测两个回波的振幅变化,以提供表示聚合物熔体中的超声波速度和衰减的输出信号。 处理这些输出信号以获得包括作为时间的函数同时测量的超声波速度和衰减值的数据。 然后处理数据以获得与聚合物的粘弹性质,结构或组成有关的定量信息,其可以用作闭环过程控制系统中的输入数据。

    Optical distributor
    4.
    发明授权
    Optical distributor 失效
    光分配器

    公开(公告)号:US5353145A

    公开(公告)日:1994-10-04

    申请号:US973759

    申请日:1992-11-09

    CPC classification number: H04Q11/0001 H04Q11/0066

    Abstract: An optical distributor which comprises M inputs (M>1) each receiving signals. M modules (MT1 to MT4) are connected to the M inputs and each simultaneously process N consecutive signals (N>1). N optical couplers (CO1 to CO4) each having M inputs and 1 output are connected to one of the N outputs. A control means (G) controls the modules and enables the distributor to scramble the signals so that a given signal reaches a given output of the distributor. Each module electronically demultiplexes the N consecutive signals, time rearranges the demultiplexed signals in accordance with the output of the distributor imposed by the control means for each of these signals, transposes the latter into optical form at N different wavelengths and switches each transposed signal to the desired output of the distributor. Such a device finds particular application in optical telecommunication system.

    Abstract translation: 一个光分配器,包括每个接收信号的M个输入(M> 1)。 M模块(MT1至MT4)连接到M个输入端,并且每个模块同时处理N个连续信号(N> 1)。 每个具有M个输入和1个输出的N个光耦合器(CO1至CO4)连接到N个输出中的一个。 控制装置(G)控制模块并且使分配器能够对信号进行加扰,使得给定信号达到分配器的给定输出。 每个模块对N个连续信号进行电子解复用,根据由控制装置为这些信号中的每一个施加的分配器的输出,重新排列解复用的信号,并将其转换成N个不同波长的光学形式,并将每个转置的信号切换到 分销商的所需输出。 这种装置在光通信系统中发现具体应用。

    Optical communications network
    5.
    发明授权
    Optical communications network 失效
    光通信网

    公开(公告)号:US5432628A

    公开(公告)日:1995-07-11

    申请号:US273276

    申请日:1994-07-11

    CPC classification number: H04B10/516 H04J14/002

    Abstract: According to the present invention, an optical communications network is provided, which network comprises control means for controlling the network and a plurality of stations each having an information emitter and receiver. The stations are interconnected by optical signal transmission supports and the control means. According to the present invention, main delays of the stations are controllably modifiable, as desired, by the control means. Particular utility is found in the area of private communications networks, although other utilities are contemplated.

    Abstract translation: 根据本发明,提供了一种光通信网络,该网络包括用于控制网络的控制装置和各自具有信息发射器和接收器的多个站。 这些站通过光信号传输支持和控制装置相互连接。 根据本发明,根据需要,通过控制装置可控制地修改站的主要延迟。 在私人通信网络的领域中发现了特别的用途,尽管预期了其他公用事业。

    Multipurpose component with integrated optics and distribution network
with optical amplification
    6.
    发明授权
    Multipurpose component with integrated optics and distribution network with optical amplification 失效
    具有集成光学和分布网络的多功能元件具有光学放大

    公开(公告)号:US5125049A

    公开(公告)日:1992-06-23

    申请号:US593090

    申请日:1990-10-05

    CPC classification number: G02F1/035 G02F2203/055

    Abstract: A multi-purpose component with integrated optics includes an optical light guide (12) formed on one face of a substrate (10) made of a double refracting material having neutral axes orientated so that one electromagnetic wave extending into the guide (12) is split up into two waves having polarizations perpendicular to each other and along the neutral axes. A power source (18) applies an electric filed perpendicular to the optical light guide (12) and uniformly along the guide (12). Two rectilinear polarizers (20, 22) with polarization directions (d1, d2) parallel to each other are each disposed at one extremity of the guide (12). The component also includes focussing means (24, 26, 28, 30). The component has particular utility for tuneable optical filtering and optical telecommunications.

    Abstract translation: 具有集成光学元件的多用途部件包括形成在由双折射材料制成的基板(10)的一个表面上的光导(12),所述双折射材料具有定向的中性轴线,使得延伸到引导件(12)中的一个电磁波分裂 上升到具有彼此垂直并且沿着中性轴的偏振的两个波。 电源(18)沿着引导件(12)均匀地施加垂直于光导(12)的电场。 具有彼此平行的偏振方向(d1,d2)的两个直线偏振器(20,22)分别设置在引导件(12)的一个末端。 该部件还包括聚焦装置(24,26,28,30)。 该组件具有可调光学滤波和光通信的特殊功能。

    Enclosure for electric device, in particular for surge arrester,
including a molded, electrically insulating envelope
    7.
    发明授权
    Enclosure for electric device, in particular for surge arrester, including a molded, electrically insulating envelope 失效
    电气设备外壳,特别是用于避雷器,包括模制的电绝缘外壳

    公开(公告)号:US4827370A

    公开(公告)日:1989-05-02

    申请号:US136828

    申请日:1987-12-22

    CPC classification number: H01T4/04 H01C7/12

    Abstract: An enclosure for electric device, in particular for surge arrester, comprises an outer, cylindrical envelope and an inner wall both made of electrically non conducting materials. One of the ends of the envelope is closed while the other is open. An electrode with a principal portion inside the enclosure extends through the envelope and projects outside the latter. Bolt anchors are used for fixing the enclosure on a mechanical support and for mounting a closure device on the open end of the envelope. The material constituting the inner wall is impervious to humidity and protects the envelope against breaking thereof by thermal shock caused for example by the production of an electric arc within the enclosure, while the material constituting the cylindrical envelope is a synthetic insulating material capable of withstanding a high mechanical tension. The envelope is molded on the inner wall and around the electrode and the bolt anchors, whereby the inner wall and the electrode are integrated to the envelope, and the bolt anchors are fixedly attached to the synthetic insulating material.

    Abstract translation: 用于电气设备的外壳,特别是用于电涌放电器的外壳包括外部圆柱形外壳和内壁,均由非导电材料制成。 信封的一端封闭,另一端打开。 外壳内部具有主要部分的电极延伸穿过信封,并在外部延伸出来。 螺栓锚固件用于将外壳固定在机械支架上,并用于将封闭装置安装在信封的开口端。 构成内壁的材料不受湿度影响,并且通过例如通过在外壳内产生电弧而引起的热冲击来保护外壳免受其破裂,而构成圆柱形外壳的材料是能够承受 机械张力高。 信封被模制在内壁上并围绕电极和螺栓锚固,由此将内壁和电极整合到外壳中,并且螺栓锚固件固定地连接到合成绝缘材料上。

    Ultrasonic characterization of polymers under simulated processing
conditions
    8.
    发明授权
    Ultrasonic characterization of polymers under simulated processing conditions 失效
    在模拟加工条件下聚合物的超声波表征

    公开(公告)号:US4754645A

    公开(公告)日:1988-07-05

    申请号:US49579

    申请日:1987-05-14

    Abstract: A method and an apparatus for ultrasonically characterizing polymer materials under simulated processing conditions are disclosed. According to the invention, a sample of a polymer is held in confinement between two axially aligned buffer rods having opposed parallel end surfaces spaced from one another to define a gap filled with the polymer sample, the polymer sample being acoustically coupled to the opposed end surfaces of the buffer rods. Ultrasonic waves are transmitted through one of the buffer rods in a direction toward the polymer sample for interaction therewith, and the polymer sample is subjected to controlled temperature or pressure variations over a predetermined period of time, the variation in temperature or pressure being effected via the buffer rods. Phase and amplitude variations of the ultrasonic waves having interacted with the polymer sample are continuously monitored as well as thickness variations of the polymer sample, over the predetermined period of time, to obtain data comprising phase, amplitude and thickness values measured as a function of temperature or pressure and time, which are then processed to derive characteristic parameters providing both a thermodynamic and viscoelastic characterization of the polymer. The present invention enables one to more adequately control the polymer processing conditions, with a view to optimizing the properties of a given polymer for a given application.

    Abstract translation: 公开了一种用于在模拟加工条件下超声波表征聚合物材料的方法和装置。 根据本发明,将聚合物的样品保持在两个轴向对准的缓冲棒之间,其间具有彼此间隔开的相对平行的端面,以限定填充有聚合物样品的间隙,聚合物样品声耦合到相对的端面 的缓冲棒。 超声波沿着朝向聚合物样品的方向通过一个缓冲杆,以与其相互作用,并且聚合物样品在预定时间段内受到受控的温度或压力变化,温度或压力的变化通过 缓冲棒。 连续监测与聚合物样品相互作用的超声波的相位和振幅变化以及在预定时间段内聚合物样品的厚度变化,以获得包括作为温度的函数测量的相位,幅度和厚度值的数据 或压力和时间,其然后被处理以导出提供聚合物的热力学和粘弹性表征的特征参数。 本发明使得能够更好地控制聚合物加工条件,从而优化给定聚合物对于给定应用的性质。

    Ring network for transmitting wavelength-multiplexed informations
    9.
    发明授权
    Ring network for transmitting wavelength-multiplexed informations 失效
    环网用于发送波分复用信息

    公开(公告)号:US5760934A

    公开(公告)日:1998-06-02

    申请号:US643459

    申请日:1996-05-08

    Abstract: This ring network for wavelength-multiplexed information transmission. comprises two optical fibres (F1, F2) passing through nodes (N1 to N4) of the network and traversed in the opposite direction by informations, electronic add-drop multiplexers (ME1 to ME4) or ADM, each ADM supplying information to other ADM's, of the network at given wavelengths and optical add-drop multiplexers (M01 to M04) or OADM, each OADM adding to the fibres the informations from the associated ADM and extracting from said fibres the informations intended for said ADM. Application to optical telecommunications.

    Abstract translation: 该环网用于波分复用信息传输。 包括通过网络的节点(N1至N4)并通过信息沿相反方向穿过的两根光纤(F1,F2),电子分插复用器(ME1至ME4)或ADM,每个ADM向其他ADM提供信息, (M01至M04)或OADM,每个OADM向相关ADM的信息添加来自所述光纤的信息并从所述光纤中提取用于所述ADM的信息。 应用于光通信。

    Add - drop multiplexer
    10.
    发明授权
    Add - drop multiplexer 失效
    分插复用器

    公开(公告)号:US5506710A

    公开(公告)日:1996-04-09

    申请号:US50640

    申请日:1993-04-22

    Applicant: Andre Hamel

    Inventor: Andre Hamel

    CPC classification number: H04Q11/0001 H04J14/083 H04Q11/0066

    Abstract: An add-drop multiplexer includes a first photodector (14), which receives informations in optical form, some of which are to be supplied to users addressees or recipients chosen from among N users addressees or recipients associated with the wavelengths L1, . . . , LN, whilst the other informations form an output flow at wavelength LO, a second photodetector (16) receiving in optical form informations to be inserted in said flow, a tunable source (18), which converts the signals from the first photodetector into optical signals of wavelengths chosen from among LO, L1 . . . LN under the control of control unit (20) and as a function of their destination, another source (22), which converts the signals from the second photodetector into optical signals of wavelength LO, a coupler (24) connecting the sources to N+1 filters (f0 . . . , f3) only respectively permitting the passage of LO . . . LN. Application to optical telecommunications.

    Abstract translation: 分插复用器包括第一光接收器(14),其以光学形式接收信息,其中一些将被提供给从与N个用户地址或与波长L1相关联的接收者中选择的用户收件人或接收者。 。 。 LN,而其他信息在波长LO处形成输出流,第二光电检测器(16)以光学形式接收待插入到所述流中的信息;可调谐源(18),其将来自第一光电检测器的信号转换成光 从LO,L1中选择的波长信号。 。 。 LN在控制单元(20)的控制下并根据其目的地的功能,将来自第二光电探测器的信号转换为波长LO的光信号的另一源(22),将源连接到N + 1个滤波器(f0,...,f3)仅分别允许LO通过。 。 。 LN。 应用于光通信。

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