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US 6,969,025 B1Granted
Servo actuation systems
AssigneeMbda UK Limited
InventorsJohn F. Bugge, Kenneth C. Goulding, Anthony Machell
Life of this patent
Estimating the term…
Abstract
A dual servo system for a seeker actuator comprises a seeker head gimballed on a platform and driven in the pitch and yaw senses by respective fast, i.e. high bandwidth low ambit, servo sub-systems, the platform being pivotally mounted with respect to a base and driven in the pitch and yaw senses by respective slow, i.e. low bandwidth high ambit, servo systems. The pivotal mounting between the platform and the base is configured to provide a spherical bearing of relatively large area (typically about 85° solid angle) to provide good resistance to high acceleration loads.
Claims14
A dual servo system comprising:
- a support means;
- platform means mounted for movement in a given sense with respect to said support means;
- base means;
- said support means being mounted for movement in substantially the same sense with respect to said base means;
- first drive means for effecting small displacements of said platform means relative to said support means;
- second drive means for effecting large displacements of said support means relative to said base means;
- and
- common control means, responsive to an input signal, for controlling said first and second drive means to orient said platform means in accordance with said input signal.
5 more elements
A seeker actuation system for a projectile including:
- base means for attachment to a projectile,
- mounting means supported for movement in at least one sense,
- sensor means mounted for movement with respect to the mounting means in said at least one sense,
- first drive means for effecting movement of said mounting means relative to said base means in said at least one sense,
- second drive means for effecting movement of said sensor relative to said mounting means in said at least one sense, and
- common means responsive to an input demand signal to control each of said first and second drive means to move said sensor to a required position,
- one of said drive means being capable of effecting movement in a relatively large locus of movement and the other of said drive means being capable of effecting movement in a relatively small locus of movement.
4 more elements
A servo system comprising:
- a platform mounted for movement;
- and
- a servo loop controlling movement of said platform in accordance with an input signal, said servo loop including:
- first drive means for effecting relatively large displacements of said platform within a relatively low bandwidth;
- second drive means for effecting relatively small displacements of said platform within a relatively high bandwidth;
- and
- common control means, responsive to said input signal, for controlling said first and second drive means.
4 more elements
A dual servo system comprising:
- a support means;
- platform means mounted for movement in a given sense with respect to said support means;
- base means;
- said support means being mounted for movement in substantially the same sense with respect to said base means;
- first drive means for effecting small displacements of said platform means relative to said support means;
- second drive means for effecting large displacements of said support means relative to said base means;
- and
- control means, separate from said first and second drive means and responsive to an input signal, for controlling said first and second drive means to orient said platform means in accordance with said input signal.
5 more elements
A seeker actuation system for a projectile including:
- base means for attachment to a projectile,
- mounting means supported for movement in at least one sense,
- sensor means mounted for movement with respect to the mounting means in said at least one sense,
- first drive means for effecting movement of said mounting means relative to said base means in said at least one sense,
- second drive means for effecting movement of said sensor relative to said mounting means in said at least one sense, and
- means, separate from said first and second drive means and responsive to an input demand signal, for controlling said first and second drive means to move said sensor to a required position,
- one of said drive means being capable of effecting movement in a relatively large locus of movement and the other of said drive means being capable of effecting movement in a relatively small locus of movement.
4 more elements
A servo system comprising:
- a platform mounted for movement;
- and
- a servo loop controlling movement of said platform in accordance with an input signal, said servo loop including:
- first drive means for effecting relatively large displacements of said platform within a relatively low bandwidth;
- second drive means for effecting relatively small displacements of said platform within a relatively high bandwidth;
- and
- control means, separate from said first and second drive means and responsive to said input signal, for controlling said first and second drive means.
4 more elements
Dependencies are inferred from the claim text.