Calibration system and method for whole angle gyroscope

    公开(公告)号:US10520331B2

    公开(公告)日:2019-12-31

    申请号:US15906177

    申请日:2018-02-27

    Abstract: According to one aspect, embodiments herein provide a whole angle gyroscope comprising a central point, at least one mass arranged symmetrically about the central point, a plurality of transducers, each configured to perform at least one of driving and sensing motion of the at least one mass, and a processor coupled to the plurality of transducers, the processor configured to operate the plurality of transducers to drive the at least one mass in at least a first vibratory mode and a second vibratory mode, identify a rate dead zone of the whole angle gyroscope, and operate the plurality of transducers to apply a force to the at least one mass to reduce the identified rate dead zone of the whole angle gyroscope.

    CALIBRATION SYSTEMS AND METHODS FOR GYROSCOPES
    23.
    发明申请
    CALIBRATION SYSTEMS AND METHODS FOR GYROSCOPES 有权
    校准系统和方法用于GYROSCOPES

    公开(公告)号:US20160091339A1

    公开(公告)日:2016-03-31

    申请号:US14501083

    申请日:2014-09-30

    CPC classification number: G01C25/00 G01C19/56 G01C19/5776 G01C25/005

    Abstract: Methods and apparatus for calibrating a gyroscope without rotating the instrument. In one example, a calibration method includes operating the gyroscope in a self-oscillation loop to generate x-axis and y-axis drive signals, adding forcing signals to the x-axis and y-axis drive signals to produce pick-off x-axis and y-axis signals, measuring the pick-off x-axis and y-axis signals to produce measurement data, determining a relative phase between the pick-off x-axis and y-axis signals, based on the measurement data and the relative phase, estimating parameters of the gyroscope, based on the measurement data and the estimated parameters, calculating estimated position signals to calibrate the gyroscope.

    Abstract translation: 不旋转仪器校准陀螺仪的方法和设备。 在一个示例中,校准方法包括在自振荡环路中操作陀螺仪以产生x轴和y轴驱动信号,将强制信号添加到x轴和y轴驱动信号以产生拾取x- 轴和y轴信号,测量拾取x轴和y轴信号以产生测量数据,基于测量数据确定拾取x轴和y轴信号之间的相对相位, 相对相位,基于测量数据和估计参数来估计陀螺仪的参数,计算估计位置信号以校准陀螺仪。

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