GYROSCOPE
    2.
    发明授权
    GYROSCOPE 有权
    陀螺仪

    公开(公告)号:EP3009792B1

    公开(公告)日:2018-02-14

    申请号:EP15192443.8

    申请日:2010-11-19

    申请人: Innalabs Limited

    IPC分类号: G01C19/5691 G01C19/56

    CPC分类号: G01C19/56 G01C19/5691

    摘要: The invention relates to gyroscope equipment. The axially symmetrical Coriolis vibratory gyroscope comprises a thin-walled resonator with a hemispherical or cylindrical or toroidal form, said resonator being fixed at the center to a support and being formed with openings in that wall of the resonator which is located around said support, the number of openings being determined on the basis of the formula 4nk, where k is an integer, n is the order of oscillation modes, and the angle between two neighboring openings is equal (I), wherein said support has a symmetrical form along the longitudinal axis thereof and is fixed to a base, solenoids and electrodes are positioned on the wall of the resonator or next to the resonator for exciting and measuring two oscillation modes, the constant amplitude of one of the modes thereof being intended for monitoring a secondary oscillation mode which is sensitive to Coriolis forces, and the base is provided with a seat for the support of the resonator and with electrically insulated hermetically sealed leads which pass outwards via the base and are passed through the openings in the wall of the resonator for connection to elements of an electronics board.

    METHOD FOR CALIBRATING THE SCALE FACTOR OF A HYDRAULIC ANGULAR VELOCITY SENSOR OR AXISYMMETRIC VIBRATORY GYROSCOPE
    4.
    发明公开
    METHOD FOR CALIBRATING THE SCALE FACTOR OF A HYDRAULIC ANGULAR VELOCITY SENSOR OR AXISYMMETRIC VIBRATORY GYROSCOPE 有权
    VERFAHREN ZUR KALIBRIERUNG DES SKALENFAKTORS EINES HYDRAULISCHEN WINKELGESCHWINDIGKEITSSORSORS ODER AXIALSYMMETRISCHEN VIBRATIONSKREISELS

    公开(公告)号:EP2778609A1

    公开(公告)日:2014-09-17

    申请号:EP11874070.3

    申请日:2011-10-14

    申请人: Innalabs Limited

    IPC分类号: G01C19/5776 G01P21/00

    摘要: The invention relates to gyroscopic instruments. The method for calibrating the scale factor of a hydraulic angular velocity sensor or an axisymmetric vibratory gyroscope, which method uses a control amplitude signal, a control precessional signal CP and a control quadrature signal CQ for exciting the vibration of a resonator on a resonant frequency, involves a first step of pre-calibration which consists of measuring and recording an initial scale factor and the value of an initial control signal, and a second step of measuring the value of the current control signal and establishing a scale factor SF that is corrected on the basis of a proportional relationship involving the initial scale factor SF°, the initial value of the control signal Y° and the current value of the control signal Y° according to the formula SF=SF°Y/Y°.

    摘要翻译: 本发明涉及陀螺仪。 用于校准液压角速度传感器或轴对称振动陀螺仪的比例因子的方法,该方法使用控制幅度信号,控制进动信号CP和控制正交信号CQ来激励谐振器在谐振频率上的振动, 包括预校准的第一步骤,其包括测量和记录初始比例因子和初始控制信号的值,以及第二步骤,测量电流控制信号的值,并建立校正的比例因子SF 根据公式SF = SF°Y / Y°,涉及初始比例因子SF°,控制信号Y°的初始值和控制信号Y°的当前值的比例关系的基础。

    SYSTÈME DE NAVIGATION INERTIELLE À PRÉCISION AMÉLIORÉE

    公开(公告)号:EP4403874A2

    公开(公告)日:2024-07-24

    申请号:EP24181600.8

    申请日:2016-11-28

    申请人: Innalabs Limited

    IPC分类号: G01C19/38

    CPC分类号: G01C21/18 G01C19/38

    摘要: L'invention concerne un système de navigation inertielle pour un porteur comportant un coeur comportant des capteurs gyroscopiques permettant de déterminer sa vitesse angulaire suivant trois axes définissant un trièdre de référence, deux des axes définissant un plan de référence et le troisième axe étant perpendiculaire à ce plan. Le dispositif comporte des moyens de commande et de contrôle permettant de mettre le coeur en rotation autour du troisième axe et de déterminer la direction du nord géographique à partir des informations fournies par les capteurs gyroscopiques et par un accéléromètre placé dans le plan de référence; la rotation du coeur étant réalisée avec une période pour laquelle la valeur de la variance d'Allan de l'erreur de stabilité des capteurs gyroscopiques est inférieure à une valeur donnée garantissant la précision avec laquelle la direction du nord géographique peut-être connue.

    METHOD FOR CALIBRATING THE SCALE FACTOR OF AN AXISYMMETRIC VIBRATORY GYROSCOPE

    公开(公告)号:EP2778609B1

    公开(公告)日:2018-07-11

    申请号:EP11874070.3

    申请日:2011-10-14

    申请人: Innalabs Limited

    摘要: The invention relates to gyroscopic instruments. The method for calibrating the scale factor of a hydraulic angular velocity sensor or an axisymmetric vibratory gyroscope, which method uses a control amplitude signal, a control precessional signal CP and a control quadrature signal CQ for exciting the vibration of a resonator on a resonant frequency, involves a first step of pre-calibration which consists of measuring and recording an initial scale factor and the value of an initial control signal, and a second step of measuring the value of the current control signal and establishing a scale factor SF that is corrected on the basis of a proportional relationship involving the initial scale factor SF°, the initial value of the control signal Y° and the current value of the control signal Y° according to the formula SF=SF°Y/Y°.

    GYROSCOPE
    7.
    发明公开
    GYROSCOPE 审中-公开
    陀螺仪

    公开(公告)号:EP3234504A1

    公开(公告)日:2017-10-25

    申请号:EP15823502.8

    申请日:2015-12-17

    申请人: Innalabs Limited

    IPC分类号: G01C19/5783

    CPC分类号: G01C19/5642 G01C19/5783

    摘要: A gyroscope comprising a resonant structure and a plurality of transducers configured to drive a vibrational mode in the resonant structure and detect vibrations of the resonant structure, wherein at least one of the plurality of transducers comprises a piezoelectric mono crystal.

    摘要翻译: 一种陀螺仪,包括谐振结构和多个传感器,所述传感器被配置为驱动所述谐振结构中的振动模式并检测所述谐振结构的振动,其中所述多个传感器中的至少一个包括压电单晶。

    METHOD FOR CALIBRATING A VIBRATORY GYROSCOPE
    8.
    发明公开
    METHOD FOR CALIBRATING A VIBRATORY GYROSCOPE 审中-公开
    校准振动陀螺仪的方法

    公开(公告)号:EP3169976A1

    公开(公告)日:2017-05-24

    申请号:EP15736298.9

    申请日:2015-07-15

    申请人: Innalabs Limited

    摘要: The present invention is concerned with a method of calibrating a vibrating gyroscope. The method comprises exciting a vibration along an excitation axis of a resonant structure wherein the excitation axis is positioned at a first angular position, sensing the vibration of the resonant structure on a first sensing axis of the resonant structure while the excitation axis is positioned at the first angular position, generating a first sensing signal indicative of the sensed vibration of the resonant structure on the first sensing axis, rotating the excitation axis in a continuous manner around the resonant structure to a second angular position, sensing the vibration of the resonant structure on a second sensing axis of the resonant structure while the excitation axis is positioned at the second angular position, generating a second sensing signal indicative of the sensed vibration of the resonant structure on the second sensing axis and adding the first sensing signal to the second sensing signal in order to derive a bias of the gyroscope.

    摘要翻译: 本发明涉及一种校准振动陀螺仪的方法。 该方法包括激励沿共振结构的激励轴的振动,其中激励轴位于第一角位置,在激励轴位于第一角位置时感测共振结构的第一感测轴上的共振结构的振动, 产生第一感测信号,所述第一感测信号指示所述第一感测轴上的所述谐振结构的所述感测振动,以所述谐振结构周围的所述连续方式将所述激励轴旋转到第二角度位置,感测所述谐振结构的振动 所述谐振结构的第二感测轴线,同时所述激励轴线位于所述第二角度位置处,产生第二感测信号,所述第二感测信号指示在所述第二感测轴线上感测到的所述谐振结构的振动,并且将所述第一感测信号添加到所述第二感测信号 以导出陀螺仪的偏差。