公开(公告)号：US09482553B2

公开(公告)日：2016-11-01

申请号：US14501083

申请日：2014-09-30

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： Marc S. Weinberg ,  Eugene H. Cook ,  Stephen L. Finberg ,  Murali V. Chaparala ,  Thayne R. Henry ,  Thomas A. Campbell

IPC: G01C25/00 ,  G01C19/56

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。

公开(公告)号：US20160091339A1

公开(公告)日：2016-03-31

申请号：US14501083

申请日：2014-09-30

Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.

Inventor： Marc S. Weinberg ,  Eugene H. Cook ,  Stephen L. Finberg ,  Murali V. Chaparala ,  Thayne R. Henry ,  Thomas A. Campbell

IPC: G01C25/00 ,  G01C19/56

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。