US4020702A
Expired / Lapsed
US
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Redundant inertial measurement system configuration
Assignee: Bendix Corp
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Filing: 1974-06-17
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Granted: 1977-05-03
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Expires: 1994-06-17
Abstract
Abstract A redundant inertial measuring system includes three strapdown platforms each having two inertial sensors. The sensitive axes of the sensors are discretely disposed relative to the faces of a dodecahedron. The sensors and their associated electronics are physically and electrically separated from each other within each of the platforms.
Inventors
- 👤 Michael Epstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:12
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1221
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
126 words
A redundant inertial measuring system for a space vehicle comprising: three strapdown platforms supported by the vehicle; each platform supporting two inertial sensors; the sensors being oriented by disposing the sensitive axes thereof substantially normal to the faces of a regular dodecahedron; power supply means, rebalancing means and scaling means associated with each of the sensors; each of the power supply means exergizing its associated sensor, rebalancing means and scaling means; each of the scaling means connected to its associated sensor for scaling the output therefrom; and each of the rebalancing means connected to its associated scaling means and sensor and responsive to the scaled output for closing a loop around the sensor and for providing an output independent of the other of the rebalancing means.
Claim 2
Dependent Claim
126 words
A redundant inertial measuring system for a space vehicle comprising: three strapdown platforms supported by the vehicle; each platform supporting two inertial sensors; the sensors being oriented by disposing the sensitive axes thereof substantially normal to the faces of a regular dodecahedron; power supply means, rebalancing means and scaling means associated with each of the sensors; each of the power supply means exergizing its associated sensor, rebalancing means and scaling means; each of the scaling means connected to its associated sensor for scaling the output therefrom; and each of the rebalancing means connected to its associated scaling means and sensor and responsive to the scaled output for closing a loop around the sensor and for providing an output independent of the other of the rebalancing means.
Claim 3
Dependent Claim
50 words
A redundant inertial measuring system as described by claim 1, wherein: each of the platforms has a pair of compartments; and each of the compartments contains a sensor and associated power supply means, rebalancing means and scaling means for providing an output independent of the outputs from the other compartments.
Claim 4
Dependent Claim
23 words
A redundant inertial measuring system as described by claim 5, wherein: the power supply means and the rebalancing means are interchangeable between compartments.
Claim 5
Dependent Claim
45 words
A redundant inertial measuring system as described by claim 5, wherein: the vehicle has three mutually perpendicular axes, each of which is equiangularly spaced between adjacent normals to the faces of the dodecahedron; and each of the platforms is disposed along one of said axes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |