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Patent US3986092A successfully refreshed from Google Patents.
US3986092A
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US
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Stabilization system for a platform suspended in a gimbal frame
Assignee: Thales Nederland BV
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Filing: 1973-03-09
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Granted: 1976-10-12
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Expires: 1993-03-09
Abstract
Abstract A stabilization system for a platform suspended in a gimbal frame comprises a motor tachometer combination mounted on the frame for tilting the platform about an axis, a gyro suspended on the platform and driving a synchro to provide a servo loop for controlling the motor, a preamplifier and an amplifier with a negative feedback via the motor-tacho combination to align the platform, and an angular velocity indicator mounted on the frame to produce outside the servo loop a correction signal for the tacho feedback signal.
Inventors
- 👤 Sjoerd Tijsma
- 👤 Gerrit Johan Hendrik Spenkelink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:16
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/18; G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
A system for the stabilization of a platform suspended in a gimbal frame to rotate about at least one axis, comprising a gyro hung on gimbals supported on said platform, means coupled between the gyro and the platform to derive an error signal, a combination of a motor with a tacho generator mounted on said gimbal frame and mechanically coupled to said platform to tilt it about said one axis, a servo loop including a servo-preamplifier driven by said error signal to produce a partial compensation signal, and a servo final amplifier having a plurality of inputs and an output for actuating said motor; one of said inputs being supplied by said partial compensation signal and another input by a negative feedback signal produced by said tacho generator, and an angular velocity transducer mounted on the gimbal frame outside the servo loop to generate a correction signal applied to a third input of said servo final amplifier.
Claim 2
Independent Claim
157 words
A system for the stabilization of a platform suspended in a gimbal frame to rotate about at least one axis, comprising a gyro hung on gimbals supported on said platform, means coupled between the gyro and the platform to derive an error signal, a combination of a motor with a tacho generator mounted on said gimbal frame and mechanically coupled to said platform to tilt it about said one axis, a servo loop including a servo-preamplifier driven by said error signal to produce a partial compensation signal, and a servo final amplifier having a plurality of inputs and an output for actuating said motor; one of said inputs being supplied by said partial compensation signal and another input by a negative feedback signal produced by said tacho generator, and an angular velocity transducer mounted on the gimbal frame outside the servo loop to generate a correction signal applied to a third input of said servo final amplifier.
Claim 3
Dependent Claim
22 words
System as claimed in claim 1 wherein a low-pass filter is provided between the angular velocity indicator and the servo final amplifier.
References Cited (Backward Citations)
US2977804A
Cited
US2945643A
Cited
US3099005A
Cited
US3230351A
Cited
US3184662A
Cited
US3246220A
Cited
US3456511A
Cited
US3471108A
Cited
US3665283A
Cited
US3830447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |