High frequency attenuation cable
    53.
    发明公开
    High frequency attenuation cable 失效
    高频衰减电缆

    公开(公告)号:EP0232045A3

    公开(公告)日:1989-04-26

    申请号:EP87300432.9

    申请日:1987-01-19

    申请人: RAYCHEM LIMITED

    IPC分类号: H01B11/14

    CPC分类号: H01B11/146 H01B11/143

    摘要: High frequency attenuation cable has a core surrounded by an EMI shielding layer. The core comprises at least one inner conductor, at least one high frequency frequency absorption layer or non-amorphous magnetic metal tape surrounding, but not necessarily adjacent to, the inner conductor, and at least one dielectric layer surrounding, but not necessarily adjacent to, the inner conductor. The constructions according to the invention enable improved attenuation at frequencies in the range of 10 - 100 MHz.

    Conductive polymer composition
    54.
    发明公开
    Conductive polymer composition 失效
    LeitfähigeKunststoffzusammensetzung。

    公开(公告)号:EP0307205A2

    公开(公告)日:1989-03-15

    申请号:EP88308316.4

    申请日:1988-09-08

    申请人: RAYCHEM LIMITED

    IPC分类号: B29C61/06 H05B3/14

    摘要: A heat recoverable conductive polymeric composition compri­ses a particular selection of carbon black or a mixture of carbon blacks in a polymer. The carbon black(s) has a sur­face area A or mean surface area A in the range 40-400 m²g⁻¹, and a DPBA/particle size (D/S) ratio or mean ratio ( D / S ) in the range 2.5 - 10. The composition has advantageous electrical properties. These properties advantageously allow it to be used in articles which are electroded longitudinally.

    摘要翻译: 可热可回收的导电聚合物组合物包含特定选择的炭黑或聚合物中的炭黑混合物。 炭黑的表面积A或平均表面积A在40-400m 2 / g之间,DPBA /粒度(D / S)比或平均比( D / S)在2.5-10范围内。该组合物具有有利的电性能。 这些性质有利地允许其用于纵向电化的制品中。

    Piezoelectric impact sensor
    55.
    发明公开
    Piezoelectric impact sensor 失效
    压电式感应传感器

    公开(公告)号:EP0216559A3

    公开(公告)日:1989-02-22

    申请号:EP86306935.7

    申请日:1986-09-09

    申请人: RAYCHEM LIMITED

    IPC分类号: G01L5/14

    CPC分类号: F42C11/02 G01L5/14 Y10S310/80

    摘要: An impact sensing arrangement comprises a pair of bodies that are separated from each other and arranged so that an impact on one of the bodies will cause it to move toward the other body, and an elongate piezoelectric pressure sensing element that is posi­tioned between the bodies, the pressure sensing element being mechanically coupled to each of the bodies over at least one quarter and preferably at least two thirds, the width of the sensing element. The arrangement is particularly suitable for use in an ordnance projectile in which case the sensing element l0 may extend in a loop around the projectile between the nose 3 and body 2 of the projectile.

    摘要翻译: 一种冲击传感装置包括一对彼此分离并且布置成使得其中一个物体的冲击将使其向另一个主体移动的主体,以及位于主体之间的细长的压电压力感测元件, 压力感测元件在传感元件的宽度的至少四分之一,优选至少三分之二机械耦合到每个主体。 该装置特别适合用于弹射弹药,在这种情况下,感测元件10可以围绕弹丸的鼻子3和身体2之间的弹丸环绕延伸。

    Circuit protection arrangement
    56.
    发明公开
    Circuit protection arrangement 失效
    电路保护装置

    公开(公告)号:EP0259177A3

    公开(公告)日:1988-08-17

    申请号:EP87307828

    申请日:1987-09-04

    申请人: RAYCHEM LIMITED

    IPC分类号: H02H09/04

    CPC分类号: H02H9/048

    摘要: An arrangement for protecting an electrical cir­cuit from a voltage transient having a fast rise time, e.g. in the order of 20 Vns⁻¹ comprises a number of semiconductive threshold foldback switching elements preferably formed from a chalcogenide glass, in parallel with one another between a current carrying line of the circuit and earth. One or more capacitors are connected in series with the switching elements between the current carrying line and earth in order to prevent any direct currents in the current carrying line holding the switching elements in their low resistance state.

    摘要翻译: 用于保护电路不受具有快速上升时间的电压瞬变的设备,例如, 大约20Vns -1包括许多半导体阈值折回开关元件,最好由硫属化物玻璃形成,并在电路的电流传输线和地之间相互并联。 一个或多个电容器与载流线路和地之间的开关元件串联连接,以防止载流线路中的任何直流电流将开关元件保持在其低电阻状态。

    COMPOSITE MEMBRANE
    58.
    发明公开
    COMPOSITE MEMBRANE 失效
    复合膜。

    公开(公告)号:EP0263159A1

    公开(公告)日:1988-04-13

    申请号:EP87902594.0

    申请日:1987-04-06

    申请人: RAYCHEM LIMITED

    IPC分类号: C08J5 B01J39 C25B13 H01M2

    摘要: Une membrane composite comprend un premier matériau qui définit une matrice poreuse et un second matériau bloquant les portes de la matrice, le second matériau ayant été réticulé par irradiation, de préférence au moyen de rayons UV lorsqu'il se trouvait dans les pores. Un agent de réticulation est de préférence mélangé au second matériau. La matrice poreuse peut être obtenue par lessivage avec du polyéthylène d'un matériau hydrosoluble dérivé d'un mélange dudit matériau. Le second matériau peut être polymérisable, tel qu'un dérivé d'acide acrylique.

    Circuit protection device
    59.
    发明公开
    Circuit protection device 失效
    电路保护装置

    公开(公告)号:EP0261937A2

    公开(公告)日:1988-03-30

    申请号:EP87308387.7

    申请日:1987-09-22

    申请人: RAYCHEM LIMITED

    发明人: Sweet, Martin

    IPC分类号: H02H9/04 H01L45/00

    摘要: A circuit protection device for protecting an electrical circuit from a voltage transient, e.g. a voltage transient caused by an electrostatic discharge, lightning or a nuclear electromagnetic pulse, comprises a threshold switching element formed from an amorphous composition comprising germanium, sulphur and optionally antimony, and a pair of electrodes in con­tact with the composition.
    The devices generally exhibit a good balance of physical properties including switching speed, energy required to latch them in their low resistance state, high resistance state (off) resistance, threshold voltage and capacitance, which enables them to be used successfully to protect electrical circuits from such transients.

    摘要翻译: 一种电路保护装置,用于保护电路免受电压瞬变的影响,例如, 由静电放电,闪电或核电磁脉冲引起的电压瞬变包括由包含锗,硫和任选的锑的无定形组合物形成的阈值开关元件以及与该组合物接触的一对电极。 器件通常表现出良好的物理特性平衡,包括开关速度,将它们锁定在低电阻状态所需的能量,高电阻状态(关断)电阻,阈值电压和电容,这使得它们能成功用于保护电路 这种瞬变。