Optical fibre sensor
    61.
    发明公开
    Optical fibre sensor 失效
    光纤传感器。

    公开(公告)号:EP0186254A2

    公开(公告)日:1986-07-02

    申请号:EP85301181.5

    申请日:1985-02-22

    Applicant: STC PLC

    CPC classification number: G01D5/35383

    Abstract: A distributed optical fibre sensor cable, for sensing perturbations suct as pressure, comprises a length of optical fibre (10) and means adapted, in response to the perturbation to be sensec. to mechan,cally deform separate portions of the length of the fibre at sensing elements (11, 12, 13) periodically along their length in order to cause optical power launched into a mode of propagation in the core (14) and guided thereby to be coupled to an unguided mode, for example a cladding (15) mode. The coupling is optical wavelength selective and a number of separate sensing elements are each addressed with a different wavelength ( * 11, * 12, * 13) for spatial resolution along the length of the cable.

    A multi-mode radio transceiver
    62.
    发明公开
    A multi-mode radio transceiver 失效
    Funk-Sender /-Empfängerfürmehrere Moden。

    公开(公告)号:EP0180339A2

    公开(公告)日:1986-05-07

    申请号:EP85307038.1

    申请日:1985-10-02

    Applicant: STC PLC

    Abstract: A multi-mode radio transceiver comprising a sequence of bi-directional circuit modules including a radio frequency input/output amplifier module (1), a radio frequency/baseband I and Q quadrature channel conversion module (2), an analogue/ digital conversion module (3), a digital signal processor (4, 5), and a digital signal input/output interface (6), with a control means (7) whereby for transmission a radio frequency signal is formed from analogue quadrature I and Q channel components of a digitised signal at baseband and translated to the radio tranmission frequency and for reception the radio frequency signals are transformed into I and Q quadrature analogue components at baseband and subsequently digitised.

    Abstract translation: 一种多模式无线电收发器,包括一系列双向电路模块,包括射频输入/输出放大器模块(1),射频/基带I和Q正交通道转换模块(2)模拟/数字转换模块 3),数字信号处理器(4,5)和数字信号输入/输出接口(6),具有控制装置(7),由此通过模拟正交I和Q通道分量形成射频信号, 在基带处的数字化信号被转换成无线电传输频率并且用于接收射频信号在基带被转换成I和Q正交模拟分量并随后被数字化。

    Launching and recovery of tethered controlled submarine vehicles
    64.
    发明公开
    Launching and recovery of tethered controlled submarine vehicles 失效
    Zenwasserlassen oder Einholen von mit einem Kabel gesteuerten Unterwasserfahrzeugen。

    公开(公告)号:EP0169634A1

    公开(公告)日:1986-01-29

    申请号:EP85303411.4

    申请日:1985-05-15

    Applicant: STC PLC

    CPC classification number: B63B27/36 B63C11/34

    Abstract: For launching and recovering tethered remote controlled submarine vehicles a reinforced flexible free-flooding tube 3 adapted to be deployed from a ship is provided with one end of the tube remaining attached to the ship, the tube having passed therethrough an umbilical cable 1 for a remote controlled submarine vehicle. The cable and tube are deployed from a winch drum 2. The upper end of the tube has a conical termination 4 which locates in a support 6 mounted outboard of the ship. The lower end of the tube may have a docking latch to assist in recovery of the vehicle.

    Abstract translation: 对于发射和恢复系留远程控制的海底车辆,适于从船舶展开的增强的柔性自由淹水管3设置有保持连接到船上的管的一端,管已通过其中用于远程的脐带缆1 控制潜艇车辆。 电缆和管从绞盘鼓2展开。管的上端具有锥形终端4,其位于安装在船外的支撑件6中。 管的下端可以具有对接闩锁以辅助车辆的恢复。

    Manufacturing optical fibre
    65.
    发明公开
    Manufacturing optical fibre 失效
    制造光学波导。

    公开(公告)号:EP0163457A2

    公开(公告)日:1985-12-04

    申请号:EP85303467.6

    申请日:1985-05-17

    Applicant: STC PLC

    CPC classification number: C03C25/223 C03C25/22 C03C25/226

    Abstract: On line coating of optical fibre (20) adopts silicon nitride or oxynitride to provide an hermetic seal using chemical vapour deposition. Non-contacting gas seals (3, 4) at the top and bottom of the reaction chamber are so constructed that fibre vibration is avoided, (6) surface flaws are minimised and the coating minimises stress corrosion.

    Magnetic angular position sensor
    66.
    发明公开
    Magnetic angular position sensor 失效
    Magnetischer传感器zur Ermittlung einer Angularposition。

    公开(公告)号:EP0160444A2

    公开(公告)日:1985-11-06

    申请号:EP85302598.9

    申请日:1985-04-15

    Applicant: STC PLC

    CPC classification number: G01C17/26 G01C9/00 G01C17/08

    Abstract: A magnetic angular position sensor having a ferrofluid filled spherical chamber (2) in a cylindrical housing (1), within which floats a body comprising a buoyant core (3) carrying a magnet (4). Hall effect devices (7) are located in recesses (6) in the ends of the housing. The housing also carries a calibration solenoid (8).

    Abstract translation: 一种磁性角位置传感器,其具有在圆柱形壳体中的填充有氟弹性体的球形室,其中浮动体,该主体包括浮动芯体,所述浮力芯体承载着自身对准的磁体和主体与地球的磁场,并且携带奇数个小的永磁体。 霍尔效应装置位于壳体端部的凹槽中。 外壳还带有校准螺线管。

    Sensor using photo-elasticity
    67.
    发明公开
    Sensor using photo-elasticity 失效
    光弹ausnützender传感器。

    公开(公告)号:EP0160404A1

    公开(公告)日:1985-11-06

    申请号:EP85302240.8

    申请日:1985-04-24

    Applicant: STC PLC

    CPC classification number: G01R15/248 G01D5/268 G01L1/241 G01R33/032 G02F1/0131

    Abstract: Certain materials (e.g. polymers, glasses) exhibit the photo-elastic effect, whereby when they are subject to stress become birefringent, which influences a light beam passing through the glass. This beam, e.g. from a laser (1) is collimated and circularly polarised as it approaches the glass (4) and is again polarised as it leaves the glass. This stress is applied, according to this invention, by magnetostrictive strips on the glass which are influenced, by the magnetic field to be measured or the AC bias field. A miniaturised arrangement using this principle is described.

    Coating infrared fibres
    68.
    发明公开
    Coating infrared fibres 失效
    光纤。

    公开(公告)号:EP0156635A1

    公开(公告)日:1985-10-02

    申请号:EP85302016.2

    申请日:1985-03-22

    Applicant: STC PLC

    CPC classification number: C03C25/223 C03C25/1063

    Abstract: Infrared optical fibres are provided with hermetic coatings (6) by decomposition or reaction of volatile compounds of the coating material at the surface of the fibre. Materials having melting points greater than the fibre's glass transition temperatures may thus be applied at temperatures lower than the glass transition temperatures. The fibre (1) may be sufficiently hot from a preceding fibre formation (2,3) process in line with the coating process to enable the decomposition or reaction, or additional heating of the fibre by radiation may be necessary in the reaction chamber (7).

    Amplifier circuit for radio receiver
    69.
    发明公开
    Amplifier circuit for radio receiver 失效
    VerstärkershaltungfürRundfunk-Empfänger。

    公开(公告)号:EP0156487A1

    公开(公告)日:1985-10-02

    申请号:EP85301004.9

    申请日:1985-02-15

    Applicant: STC PLC

    CPC classification number: H03F3/45511 H03F2203/45406

    Abstract: A limiting differential amplifier circuit comprises first and second controllable current sources (l 1 , l 2 ) fed with the differential input signal (V m ) and a controllable differential load circuit (l L1 , l L2 ) and a feedback element (β), the feedback element comprising transistors (T 1 T 2 ) sensing the common mode output voltage and a diode (D 1 ) for translating the current generated into a control voltage (V c ) to control the differential load circuit whereby to provide high-voltage gain in the differential signal mode and low common-mode gain.

    Abstract translation: 限制差分放大器电路包括馈送有差分输入信号(V @)和可控差分负载电路(IL1,IL2)和反馈元件(beta)的第一和第二可控电流源(I1,I2),反馈元件包括 感测共模输出电压的晶体管(T1 T2)和用于将产生的电流转换为控制电压(Vc)的二极管(D1),以控制差分负载电路,从而在差分信号模式和低公共端提供高电压增益 模式增益。

    Optical correlator
    70.
    发明公开
    Optical correlator 失效
    Optische Korrelationsvorrichtung。

    公开(公告)号:EP0152186A2

    公开(公告)日:1985-08-21

    申请号:EP85300308.5

    申请日:1985-01-17

    Applicant: STC PLC

    Inventor: Collings, Neil

    CPC classification number: G06E3/005

    Abstract: A joint transform correlator in which a servo-feedback system (18) is included which employs the correlation signal output to electronically modify the representation of the 'archetype' in the reference scene portrayed in one of the spatial light modulators (12) of the correlator to make it a closer match to any 'quarry' discovered in the investigation scene portrayed in the other spatial light modulator (11).

    Abstract translation: 一种联合变换相关器,其中包括使用相关信号输出的伺服反馈系统(18),以电子地修改在相关器的空间光调制器(12)之一描绘的参考场景中的“原型”的表示 使其与其他空间光调制器(11)中描绘的调查场景中发现的任何“采石场”更接近。

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