CONTROL OF DEPOSITION OF THIN FILMS
    11.
    发明申请
    CONTROL OF DEPOSITION OF THIN FILMS 审中-公开
    薄膜沉积控制

    公开(公告)号:WO1980000504A1

    公开(公告)日:1980-03-20

    申请号:PCT/GB1979000138

    申请日:1979-08-10

    Inventor: NAT RES DEV CORP

    Abstract: In apparatus for sensing and controlling the deposition of a thin film on to a substrate (12) from a gas or vapour phase, the optical reflectance or transmittance is sensed, the resonant frequency of a crystal (14) also exposed to the deposition is sensed, and the quotient of the change in each signal over a predetermined time interval is determined. The deposition can be terminated at a suitable thickness, for example a reflectance or transmittance maximum or minimum. Instead of an optical property, the electrical resistivity of the film may be sensed and used in the same way.

    METHOD AND APPARATUS FOR SENSING IN-PLANE DEFORMATION OF A SURFACE
    12.
    发明申请
    METHOD AND APPARATUS FOR SENSING IN-PLANE DEFORMATION OF A SURFACE 审中-公开
    用于感测表面的平面内变形的方法和装置

    公开(公告)号:WO1979000320A1

    公开(公告)日:1979-06-14

    申请号:PCT/GB1978000043

    申请日:1978-11-24

    Inventor: NAT RES DEV CORP

    CPC classification number: G01B11/165 G01B2290/30

    Abstract: A surface on which there is a regular periodic pattern, often a relief pattern (12), is deformed, and in-plane deformation is sensed by illuminating the deformed pattern with a beam (12) of coherent light so that light is reflected as one zero order beam and a plurality of diffracted beams, and combining two of the beams (16, 18) so that they interfere in a manner related to the deformation along the direction of intersection of the surface plane with the plane in which the two interfering beams lie. The magnitude and direction of in-plane deformation in one or more directions and the magnitude and direction of the maximum in-plane stress or strain, can be determined automatically.

    IMPROVEMENTS IN OR RELATING TO METHODS OF PRODUCING DEVICES COMPRISING METALLISED REGIONS ON DIELECTRIC SUBSTRATES
    13.
    发明申请
    IMPROVEMENTS IN OR RELATING TO METHODS OF PRODUCING DEVICES COMPRISING METALLISED REGIONS ON DIELECTRIC SUBSTRATES 审中-公开
    或涉及生产包含金属化区域的器件的方法在电介质基板上的改进

    公开(公告)号:WO1982001790A1

    公开(公告)日:1982-05-27

    申请号:PCT/GB1981000222

    申请日:1981-10-12

    Inventor: NAT RES DEV CORP

    CPC classification number: H01L41/29 H03H9/02921 Y10T29/42

    Abstract: In devices comprising closely spaced metallised regions deposited upon a dielectric substrate, in particular acoustic wave devices, electric fields may arise between the regions due to pyroelectric effects or acquired static charges during production or subsequently. These fields can cause damage by arcing or cracking of the substrate. The present method overcomes this problem by providing resistive links between such regions so that the fields do not arise. Preferably the links are of metallising formed simultaneously with the metallised regions. Application to a SAW convolver is described in which the links are strips of metallising (7, 8, 9).

    Abstract translation: 在包括沉积在电介质基板上的紧密间隔的金属化区域的器件中,特别是声波器件中,由于在生产期间或之后的热电效应或获得的静电荷,区域之间可能会产生电场。 这些场可能导致基板的电弧或破裂的损坏。 本方法通过在这些区域之间提供电阻链接来克服这个问题,使得不会出现这些场。 优选地,连接件与金属化区域同时形成金属化。 描述了应用于SAW卷积器,其中链节是金属化带(7,8,9)。

    VARIABLE-SPEED ELECTRICAL MACHINES
    15.
    发明申请
    VARIABLE-SPEED ELECTRICAL MACHINES 审中-公开
    变速电机

    公开(公告)号:WO1982001283A1

    公开(公告)日:1982-04-15

    申请号:PCT/GB1981000199

    申请日:1981-09-23

    Inventor: NAT RES DEV CORP

    CPC classification number: H02K17/28 H02P5/74

    Abstract: Dispositif permettant la variation de la vitesse ou autres parametres de fonctionnement d'une machine electrique sans connexion au rotor. La machine est du type a induction ayant un enroulement en parties separees pour creer dans l'entrefer un flux mobile ayant differentes vitesses en modifiant l'intensite du courant dans une partie de l'enroulement. Dans un exemple, l'intensite du courant est modifiee par une impedance variable connectee a une partie de l'enroulement, l'autre partie etant connectee a une alimentation electrique. Un autre exemple, Fig. 6, illustre deux machines (NM1, NM2) disposees pour entrainer un vehicule a rail par l'intermediaire de roues a rail lisses fixees aux axes des rotors des machines. Un inverseur simple a frequence variable (NI) entraine les deux machines et est connecte a une piece (MP) de chaque enroulement de la machine. D'autres pieces (AP) de chaque enroulement des machines sont interconnectees par un dispositif de liaison (NC). En fonctionnement, la puissance (reelle ou reactive) est transferee entre les machines le long du dispositif de liaison pour egaliser le couple des machines. Ce dispositif permet d'eviter le depart d'une machine alors que l'autre cale.

    CROP ENGAGING APPARATUS AND METHODS
    17.
    发明申请
    CROP ENGAGING APPARATUS AND METHODS 审中-公开
    作物牵引装置和方法

    公开(公告)号:WO1982000564A1

    公开(公告)日:1982-03-04

    申请号:PCT/GB1981000158

    申请日:1981-08-06

    Inventor: NAT RES DEV CORP

    Abstract: A crop cutting and conditioning apparatus has two vertical axis rotary drum cutters (13), each having an upper rotor with a crop conveying surface (19) and a lower rotor carrying knives (21). Gears drive the upper and lower rotors at different peripheral velocities. The lower rotor has an annular rim (18) having an upper surface shaped to continue the outline of the conveying surface (19). The knives (21) protrude outwardly from beneath the rim (18) and rotate with the rim. The upper rotor has conditioning elements comprising brushes (35) (or sheets of plastics material), for conveying crop and conditioning crop by relative movement between the brushes and the crop. The outer tips of the brushes (35) (or the edges of the sheet or rib-like elements) lie along one or more helical or part helical paths around the rotor axis. Preferably the lower end of each helix leads during the rotation so as to exert a lifting action on crop engaged by the rotors.

    Abstract translation: 作物切割和调节装置具有两个垂直轴旋转滚筒切割器(13),每个具有上转子和作物输送表面(19)和下转子承载刀(21)。 齿轮以不同的外围速度驱动上下转子。 下转子具有环形边缘(18),其具有成形为继续输送表面(19)的轮廓的上表面。 刀(21)从边缘(18)的下方向外突出并且与边缘一起旋转。 上转子具有包括刷子(35)(或塑料材料片材)的调节元件,用于通过刷子和作物之间的相对运动来传送作物和调节作物。 电刷(35)的外部尖端(或片状或肋状元件的边缘)沿着围绕转子轴线的一个或多个螺旋或部分螺旋路径。 优选地,每个螺旋的下端在旋转期间引导,以对由转子啮合的作物施加提升作用。

    ANTIMICROBIAL SURGICAL IMPLANTS
    19.
    发明申请
    ANTIMICROBIAL SURGICAL IMPLANTS 审中-公开
    抗微生物手术植入物

    公开(公告)号:WO1981002667A1

    公开(公告)日:1981-10-01

    申请号:PCT/GB1981000058

    申请日:1981-03-26

    Inventor: NAT RES DEV CORP

    Abstract: Surgical implants, especially endoprosthetic orthopaedic implants and sutures, are rendered antimicrobial by the presence of a bioerodible metallic silver component, especially a surface coating, which provides in vivo a sustained release of silver ions in a concentration sufficient to provide a localized antimicrobial effect but insufficient to cause significant damage to connective tissue. Latently bioerodible silver components of an implant can be activated by, for example, abrasion, heating to above about 180` or, especially, contact with hydrogen peroxide.

    Abstract translation: 手术植入物,特别是假体内矫形外科植入物和缝合线,通过存在生物可腐蚀的金属银组分,特别是表面涂层而呈现抗微生物作用,该表面涂层体内提供足够提供局部抗微生物作用但不足的银离子的持续释放 对结缔组织造成重大损害。 植入物的潜在的生物可腐蚀的银组分可以通过例如磨损,加热至约180℃或特别是与过氧化氢接触来活化。

    MEASUREMENT OF REFRACTIVE INDEX PROFILE
    20.
    发明申请
    MEASUREMENT OF REFRACTIVE INDEX PROFILE 审中-公开
    折射指数简档的测量

    公开(公告)号:WO1981002634A1

    公开(公告)日:1981-09-17

    申请号:PCT/GB1981000040

    申请日:1981-03-11

    Inventor: NAT RES DEV CORP

    CPC classification number: G01N21/412

    Abstract: A method of sensing the optical deflection function of an approximately cylindrical object, such as an optical fibre preform, comprises illuminating the object with collimated light; focusing the transmitted light so that in the focal plane the distance of the light from the optical axis is linearly proportional to the angle through which light has been deviated by the object; optically modulating the focused light so that a property of the light varies as a function of said distance, and calculating the deflection function from the modulated light. The modulations may be spatial or temporal. The refractive index profile can also be calculated.

    Abstract translation: 感测诸如光纤预制件的大致圆柱形物体的光学偏转函数的方法包括用准直光照射物体; 聚焦透射光,使得在焦平面中,光从光轴的距离与光被物体偏离的角度成线性比例; 对所聚焦的光进行光学调制,使得光的特性根据所述距离而变化,并从调制光计算偏转函数。 调制可能是空间或时间的。 还可以计算折射率分布。

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