Gyroscopic stable reference apparatus
阅读：779发布：2022-07-28
专利汇可以提供Gyroscopic stable reference apparatus专利检索，专利查询，专利分析的服务。并且A gyroscopic stable reference apparatus for navigable craft which provides heading, pitch and roll outputs that are free of gyroscopic gimbal errors for all aircraft attitudes with a minimum of undesirable interaction between the directional and vertical gyroscopes.，下面是Gyroscopic stable reference apparatus专利的具体信息内容。
1. A three axis gyroscopic stable reference apparatus for navigable craft comprising a first gimbal pivotally mounted on said craft for rotation about the roll axis of said craft, a second gimbal pivotally mounted on said first gimbal for rotation about the pitch axis of said craft, a vertical gyroscope in which said second gimbal forms the outer gimbal thereof and further having an inner gimbal pivotally mounted on said second gimbal for rotation about an inner roll axis, a directional gyroscope pivotally mounted on said second gimbal for providing an azimuthal reference, said vertical gyroscope having a normally vertical spin axis and a substantially greater angular momentum than said directional gyroscope for directly stabilizing said directional gyroscope, means including pitch and roll accelerometer means for providing signals representative of tilt in pitch and roll, respectively, to maintain said spin axis of said vertical gyroscope aligned with the gravity vertical, means including servo means responsive to said rotation of said inner gimbal about said inner roll axis for rotating said first gimbal to maintain said pitch axis perpendicular to said vertical gyroscope spin axis, and pick-off means coupled to said stable reference apparatus for providing attitude information with respect to said craft about three mutually perpendicular reference axes.
2. Apparatus of the character recited in claim 1 in which said pitch and roll accelerometer means are mounted on said second gimbal.
3. Apparatus of the character recited in claim 1 in which said directional gyroscope is mounted below said vertical gyroscope.
4. Apparatus of the character recited in claim 1 in which said means including servo means comprises a single roll follow-up servo loop.
5. A three axis gyroscopic stable reference apparatus for navigable craft comprising an outer roll gimbal pivotally mounted on said craft for rotation about the roll axis of said craft, a pitch gimbal pivotally mounted on said outer roll gimbal for rotation about the pitch axis of said craft, a vertical gyroscope in which said pitch gimbal forms the outer gimbal thereof and further having an inner gimbal pivotally mounted on said pitch gimbal for rotation about an inner roll axis, a directional gyroscope pivotally mounted on said second gimbal for providing an azimuthal reference, said vertical gyroscope having a normally vertical spin axis and a substantially greater angular momentum than saiD directional gyroscope for directly stabilizing said directional gyroscope, pitch and roll accelerometer means mounted on said pitch gimbal for providing signals representative of tilt in pitch and roll, respectively, pitch and roll erection control means responsive to said pitch and roll signals respectively for maintaining said vertical gyroscope spin axis aligned with the gravity vertical, means including roll follow-up servo means responsive to said rotation of said inner gimbal about said inner roll axis for rotating said outer roll gimbal to maintain said pitch axis perpendicular to said vertical gyroscope spin axis, and pick-off means coupled to said stable reference apparatus for providing attitude information with respect to said craft about three mutually perpendicular reference axes.
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