Approach for control redistribution of coriolis vibratory gyroscope (CVG) for performance improvement

    公开(公告)号:US09709399B2

    公开(公告)日:2017-07-18

    申请号:US14594893

    申请日:2015-01-12

    Inventor: John Y. Liu

    Abstract: Provided herein is a Coriolis vibratory gyroscope (“CVG”). The CVG includes a first plurality of actuators electrically coupled to the vibratory member and arranged about a drive axis of the CVG and operable to obtain a control signal from the controller and provide a voltage sufficient to cause and maintain the vibratory member to vibrate in a first mode of oscillation; a second plurality of actuators electrically coupled to the vibratory member and arranged about a sense axis of the CVG and operable to detect a voltage based on a second mode of oscillation of the vibratory member caused by a rotation of the CVG about an axis of rotation and to provide a counter-balancing signal sufficient to null the voltage based on the second mode of oscillation, wherein the controller is operable to determine a rate of the rotation of the CVG based, in part, on the counter-balancing signal.

    Device for measuring rotation angle acceleration
    24.
    发明授权
    Device for measuring rotation angle acceleration 有权
    用于测量旋转角度加速度的装置

    公开(公告)号:US09464896B2

    公开(公告)日:2016-10-11

    申请号:US14409109

    申请日:2013-05-15

    Abstract: In a case where (i) accelerations except a specific angular acceleration cause a problem of noise and (ii) low-cost production is required, the present invention provides a device for measuring an angular acceleration which device has reduced noise that is caused by accelerations except the specific angular acceleration, by having an arrangement in which an oscillator is supported by a spring structure capable of greatly restraining movement in directions except a specific rotation direction.A device for measuring an angular acceleration integrally fabricated by a semiconductor microfabrication technology, the device including: an oscillator rotating around a rotating shaft as a center; a plurality of nodes for supporting the oscillator, the plurality of nodes each being provided at a point on a circle whose radius is r and whose center is the rotating shaft; a plurality of parallelogram links each having arms whose length is r, the arms making movement of the plurality of nodes supporting the oscillator become circular movement around the rotating shaft as a center; a supporting section for supporting fixed nodes of the plurality of parallelogram links; a rotation angle detecting section for detecting a rotation angle; and a calculation section for calculating an angular acceleration from the rotation angle.

    Abstract translation: 一种用于测量通过半导体微细加工技术整体制造的角加速度的装置,该装置包括:以旋转轴为中心旋转的振荡器; 用于支撑所述振荡器的多个节点,所述多个节点各自设置在半径为r并且其中心为旋转轴的圆上的点处; 多个具有长度为r的臂的平行四边形连杆,支撑振荡器的多个节点的臂制动运动以围绕旋转轴为中心的圆周运动; 用于支撑所述多个平行四边形链接中的固定节点的支撑部分; 用于检测旋转角度的旋转角度检测部分; 以及用于从旋转角度计算角加速度的计算部。

    CIRCUIT DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT
    25.
    发明申请
    CIRCUIT DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT 审中-公开
    电路设备,电子设备和移动对象

    公开(公告)号:US20160269011A1

    公开(公告)日:2016-09-15

    申请号:US15066054

    申请日:2016-03-10

    Abstract: A circuit device includes a multiplexer that selects an input signal from first to n-th input signals in a time division manner and outputs the selected input signal to an output node, an A/D conversion circuit that receives the first to n-th input signals outputted from the multiplexer to the output node in a time division manner and A/D-converts the received first to n-th input signals in a time division manner, and a buffer circuit provided between an i-th input node and the output node of the multiplexer. The buffer circuit buffers the i-th input signal and outputs the buffered signal to the output node of the multiplexer in a first period. The multiplexer selects the i-th input signal and outputs the selected signal to the output node in a second period. End timing of the second period comes after end timing of the first period.

    Abstract translation: 电路装置包括多路复用器,其以时分方式从第一至第n输入信号中选择输入信号,并将选择的输入信号输出到输出节点; A / D转换电路,其接收第一至第n输入 以时分方式从多路复用器输出到输出节点的信号,并以时分方式对所接收的第一至第n输入信号进行A / D转换,以及设置在第i个输入节点和输出端之间的缓冲电路 多路复用器的节点。 缓冲电路缓冲第i个输入信号,并在第一周期将缓冲信号输出到多路复用器的输出节点。 多路复用器选择第i个输入信号,并在第二个周期内将选定的信号输出到输出节点。 第二个时期的结束时间是在第一个周期的结束时间之后。

    Yaw slip handling in a robotic device
    27.
    发明授权
    Yaw slip handling in a robotic device 有权
    在机器人装置中的越野滑行处理

    公开(公告)号:US09352470B1

    公开(公告)日:2016-05-31

    申请号:US14554951

    申请日:2014-11-26

    Applicant: Google Inc.

    Abstract: An example method may include determining a requested yaw for a body of a robot, where the biped robot comprises a foot coupled to the body via a leg. The robot may then detect, via one or more sensors, a yaw rotation of the body with respect to a ground surface, where the foot is in contact with the ground surface. Based on the detected yaw rotation of the body, the robot may determine a measured yaw for the body. The robot may also determine a target yaw for the body, where the target yaw for the body is between the measured yaw for the body and the requested yaw for the body. The robot may then cause the foot to rotate the body to the target yaw for the body.

    Abstract translation: 示例性方法可以包括为机器人的身体确定所请求的偏航,其中所述Biped机器人包括经由腿联接到所述身体的脚。 机器人然后可以经由一个或多个传感器检测主体相对于地面的偏转旋转,其中脚与地面接触。 基于检测到的身体的偏转旋转,机器人可以确定身体的测量偏航。 机器人还可以确定身体的目标偏航,其中身体的目标偏航在身体的所测量的偏航和对于身体的所请求的偏航之间。 然后,机器人可以使脚将身体旋转到身体的目标偏航。

    PHYSICAL QUANTITY SENSOR ELEMENT, PHYSICAL QUANTITY SENSOR, ELECTRONIC EQUIPMENT, AND MOVABLE BODY
    28.
    发明申请
    PHYSICAL QUANTITY SENSOR ELEMENT, PHYSICAL QUANTITY SENSOR, ELECTRONIC EQUIPMENT, AND MOVABLE BODY 有权
    物理量传感器元件,物理量传感器,电子设备和可移动体

    公开(公告)号:US20160069683A1

    公开(公告)日:2016-03-10

    申请号:US14844032

    申请日:2015-09-03

    Inventor: Makoto FURUHATA

    CPC classification number: G01C19/574

    Abstract: A physical quantity sensor element is formed into a plane-shape which extends along an XY plane, and is provided with a driving portion which vibrates in a Z-axis direction, a detecting portion which vibrates in an X-axis direction due to Coriolis effect acting on the driving portion, a beam portion which connects the driving portion and the detecting portion, a fixing portion, and a beam portion which connects the detecting portion and the fixing portion, in which a spring constant of the beam portion in the Z-axis direction is smaller than a spring constant of the beam portion in the Z-axis direction, and a spring constant of the beam portion in the Z-axis direction is greater than a spring constant of the beam portion in the X-axis direction.

    Abstract translation: 物理量传感器元件形成为沿着XY平面延伸的平面形状,并且设置有沿Z轴方向振动的驱动部,由于科里奥利效应而在X轴方向上振动的检测部 作用在驱动部分上,连接驱动部分和检测部分的光束部分,固定部分和连接检测部分和固定部分的光束部分,其中Z部分中的光束部分的弹簧常数, 轴向小于梁部在Z轴方向上的弹簧常数,并且梁部在Z轴方向上的弹簧常数大于梁部在X轴方向上的弹簧常数。

    MANAGEMENT METHODS AND SYSTEMS FOR MOVEMENT DETECTION
    29.
    发明申请
    MANAGEMENT METHODS AND SYSTEMS FOR MOVEMENT DETECTION 审中-公开
    运动检测的管理方法和系统

    公开(公告)号:US20160010993A1

    公开(公告)日:2016-01-14

    申请号:US14740392

    申请日:2015-06-16

    Inventor: Chih-Feng Hsu

    Abstract: Management methods and systems for movement detection are provided. First, the movement of an electronic device is detected by at least one sensor. In response to a specific instruction, a specific movement of the electronic device after the specific instruction is received is recorded. A motion determination process is performed according to the recorded specific movement.

    Abstract translation: 提供了运动检测的管理方法和系统。 首先,通过至少一个传感器检测电子设备的移动。 响应于特定指令,记录在接收到特定指令之后电子设备的特定移动。 根据记录的特定运动进行运动确定处理。

    MEMS SENSOR WITH DECOUPLED DRIVE SYSTEM
    30.
    发明申请
    MEMS SENSOR WITH DECOUPLED DRIVE SYSTEM 有权
    具有解耦驱动系统的MEMS传感器

    公开(公告)号:US20150211853A1

    公开(公告)日:2015-07-30

    申请号:US14678774

    申请日:2015-04-03

    CPC classification number: G01C19/5712

    Abstract: In a first aspect, the angular rate sensor comprises a substrate and a rotating structure anchored to the substrate. The angular rate sensor also includes a drive mass anchored to the substrate and an element coupling the drive mass and the rotating structure. The angular rate sensor further includes an actuator for driving the drive mass into oscillation along a first axis in plane to the substrate and for driving the rotating structure into rotational oscillation around a second axis normal to the substrate; a first transducer to sense the motion of the rotating structure in response to a Coriolis force in a sense mode; and a second transducer to sense the motion of the sensor during a drive mode. In a second aspect the angular rate sensor comprises a substrate and two shear masses which are parallel to the substrate and anchored to the substrate via flexible elements.

    Abstract translation: 在第一方面,角速度传感器包括基底和锚定到基底的旋转结构。 角速率传感器还包括锚定到基板的驱动块和连接驱动块和旋转结构的元件。 角速度传感器还包括致动器,用于将驱动质量块沿着平面中的第一轴线驱动到衬底并用于将旋转结构驱动为围绕垂直于衬底的第二轴线的旋转振荡; 响应于感测模式中的科里奥利力,感测旋转结构的运动的第一换能器; 以及用于在驱动模式期间感测传感器的运动的第二换能器。 在第二方面,角速率传感器包括基板和两个平行于基板的剪切质量,并通过柔性元件锚定到基板上。

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