Title:
力に依存するジャイロスコープの感度を測定する方法
Document Type and Number:
Japanese Patent JP4929445
Kind Code:
B2
Abstract:
System and method for measuring force-dependent gyroscopic sensitivity. A force-effect model of the effects of acceleration on the output of a gyro triad is determined. Rotation sequences are then devised to permit excitation and observation of force-effect model parameters in order to provide calibration information for these parameters. A state diagram containing the gyro triad force-effect model parameters is derived from the force-effect model, where moving from one position in the state diagram to another position indicates the gyro triad error which would occur in rotating the gyro triad according to a corresponding motion. Searching for all possible closed loop paths achievable through the state diagram, by a multiple-axes rate table with a specified number of rotations, to separate gyro triad error calibration from the accelerometer calibration. Closed loop paths having minimal lengths and exhibiting larger error sensitivity are chosen to perform error parameter calibration and reduce force-dependent gyroscopic sensitivity.
Inventors:
Ryu, Gee, Kevin
Mark, John
Tazarte, Daniel, A
Mark, John
Tazarte, Daniel, A
Application Number:
JP2004569683A
Publication Date:
May 09, 2012
Filing Date:
November 12, 2003
Export Citation:
Assignee:
NORTHROP GRUMMAN SYSTEMS CORPORATION
International Classes:
G01C19/00; G01C17/38; G01C19/56; G01C21/16; G01C25/00; G01L1/00
Domestic Patent References:
| JP2005509149A | 2005-04-07 | |||
| JP2003509697A | 2003-03-11 | |||
| JPH09318382A | 1997-12-12 | |||
| JPH095104A | 1997-01-10 | |||
| JPS5395067A | 1978-08-19 | |||
| JPS5175491A | 1976-06-30 |
Attorney, Agent or Firm:
Kimura Mitsuru