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    • 4. 发明公开
    • CAPTEUR D'ACCELERATION DE TYPE OPTIQUE
    • OPTISCHER BESCHLEUNIGUNGSSENSOR
    • EP3136113A1
    • 2017-03-01
    • EP16185686.9
    • 2016-08-25
    • Sercalo Microtechnology Ltd.
    • Herbst, PeterMarxer, Cornel
    • G01P15/093G01P15/08
    • G01P15/093G01N21/474G01N2021/4742G01P1/023G01P2015/0828
    • L'invention concerne un capteur d'accélération de type optique comportant une masse sismique (12), pourvue d'une surface réfléchissante (16) mobile selon un axe de rotation, une fibre optique émettrice (10) couplée à une source de lumière (11), destinée à émettre un faisceau lumineux (L), par une de ses extrémités (8), en direction de la surface réfléchissante (16), et une fibre optique réceptrice (20) couplée à un détecteur optique (21), destinée à recevoir, par une de ses extrémités (9), le faisceau lumineux (L) renvoyé par la surface réfléchissante (16). Un mouvement de rotation de la surface réfléchissante (16) entraîne une déflexion du faisceau lumineux (L) et une variation de l'intensité lumineuse reçue par la fibre réceptrice (20). Une lentille convergente (30) est interposée, sur le trajet optique du faisceau lumineux, entre les fibres optiques (10, 20) et la masse sismique (12).
    • 本发明涉及一种光学加速度计,该光学加速度计包括:一个地震质量块,其具有根据旋转轴线的移动反射表面,通过其边缘之一的与光源耦合的旨在发射光束的发射光纤, 以及与光学检测器耦合的接收光纤,旨在通过其一个边缘接收由反射表面反射的光束。 组合的布置使得反射表面的旋转运动导致光束的偏转和由接收光纤接收的光强度的变化。 根据本发明,在光纤的光路上介于光纤与地震块之间的会聚透镜。
    • 9. 发明授权
    • ACCELERATION SENSOR
    • EP2110672B1
    • 2013-02-27
    • EP08720344.4
    • 2008-03-06
    • Panasonic Corporation
    • UEMURA, TakeshiNOZOE, Toshiyuki
    • G01P15/125G01P15/18H01L29/84
    • G01P15/125G01P15/18G01P2015/0828G01P2015/0842
    • An acceleration sensor includes a mount section arranged to be fixed to an object, a flexible section coupled to the mount section, a weight coupled to the mount section via the flexible section, and first and second opposed electrode unit. The first opposed electrode unit includes a first electrode placed on the weight and a second electrode spaced away from and facing the first electrode, and provides a first capacitance. The second opposed electrode unit includes a third electrode placed on the weight and a fourth electrode spaced away from and facing the third electrode, and provides a second capacitance. The first and third electrodes are arranged along a first direction. The second and fourth electrodes are spaced away from and face the first and third electrodes along a second direction perpendicular to the first direction, respectively. A component of an acceleration along the first direction applied to the object is detected based on the first and second capacitances. A control voltage is applied to the first and second opposed electrode units. The control voltage is changed when both of the first capacitance and the second capacitance simultaneously increase or decrease. This acceleration sensor detects the acceleration accurately.
    • 10. 发明公开
    • External force detecting device and external force detecting sensor
    • 装置,用于检测外力和外力传感器,用于检测
    • EP2477036A1
    • 2012-07-18
    • EP12151092.9
    • 2012-01-13
    • Nihon Dempa Kogyo Co., Ltd.
    • Koyama, MitsuakiMutoh, TakeruIwai, HirokiAmano, YoshiakiIchikawa, Ryoichi
    • G01P15/097G01P15/125G01P1/02G01P1/00G01L9/00
    • G01P15/097G01L1/142G01L1/162G01P1/023G01P15/125G01P2015/0828G01P2015/0871
    • An external force detecting device capable of accurately and easily detecting external force applied to a piezoelectric piece is provided. A crystal piece 2 is cantilever-supported in a container 1. Excitation electrodes 31, 41 are formed on an upper face and lower face, respectively, for example in a center portion of the crystal piece 2. On a front end portion of a lower face side of the crystal piece 2, a movable electrode 5 connected via a lead-out electrode 42 to the excitation electrode 41 is formed on the lower face side, and a fixed electrode 6 is provided on a bottom portion of the container 1 to face this movable electrode 5. The excitation electrode 31 on the upper face side and the fixed electrode 6 are connected to an oscillation circuit 14. When the crystal piece 2 bends by external force applied, capacitance between the movable electrode 5 and fixed electrode 6 changes, and this capacitance change is regarded as a change in oscillation frequency of the crystal piece.
    • 提供了一种外力检测能够适用于压电片精确地设置,并容易地检测外部力装置。 晶体片2是悬臂支承在一个容器1激励电极31,41形成在与上表面和下表面,分别为实施例中的晶体片2的中心部分上的下端的前端部 晶体片2,通过引出电极42连接到激励电极41的可动电极5的表面侧上形成的下表面侧,并且一个固定电极6设置在容器1的到表面的底部部分 该可动电极5在上表面侧的激励电极31和固定电极6连接到14到振荡电路当晶体片2度的弯曲由外力施加时,可动电极5和固定电极6点之间的变化的电容, 并且该电容变化视为在晶体片的振荡频率的变化。