US3713335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Honeywell Inc
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Filing: 1969-04-01
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Granted: 1973-01-30
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Expires: 1989-04-01
Abstract
Abstract A secondary control loop or compensation loop for compensating for mechanical errors of an inertial component is shown. The inertial component has a first torquer winding and a second torquer winding with the first torquer winding being used in a rebalance loop in the usual manner. The second torquer winding is driven by pulse circuits in response to logic signals derived from the various inertial components on the same platform. The pulses used to drive the second torquer winding are weighted to compensate for mechanical inaccuracies and errors in the inertial component attached thereto.
Inventors
- 👤 T Dupuis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:14
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/04; G01C21/00; G01C21/10; G01C21/12; G01C21/16; G01C21/166
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
An inertial platform having mounted thereon a plurality of inertial components each for sensing a particular condition, each having a rebalance loop including a primary torquer means and pulse producing means for producing pulses indicative of the sense and amplitude of the condition being sensed, and each further having an auxiliary torquer means connected to a compensation and alignment means which is connected to pulse producing means of selected inertial components and produces variable amplitude current pulses in response to the pulses indicative of the sense and amplitude of the conditions being sensed by said selected inertial components and applies the current pulses to the auxiliary torquer, for reducting errors due to mechanical inaccuracies of said inertial components.
Claim 2
Dependent Claim
118 words
An inertial platform having mounted thereon a plurality of inertial components each for sensing a particular condition, each having a rebalance loop including a primary torquer means and pulse producing means for producing pulses indicative of the sense and amplitude of the condition being sensed, and each further having an auxiliary torquer means connected to a compensation and alignment means which is connected to pulse producing means of selected inertial components and produces variable amplitude current pulses in response to the pulses indicative of the sense and amplitude of the conditions being sensed by said selected inertial components and applies the current pulses to the auxiliary torquer, for reducting errors due to mechanical inaccuracies of said inertial components.
Claim 3
Dependent Claim
118 words
An inertial platform having mounted thereon a plurality of inertial components each for sensing a particular condition, each having a rebalance loop including a primary torquer means and pulse producing means for producing pulses indicative of the sense and amplitude of the condition being sensed, and each further having an auxiliary torquer means connected to a compensation and alignment means which is connected to pulse producing means of selected inertial components and produces variable amplitude current pulses in response to the pulses indicative of the sense and amplitude of the conditions being sensed by said selected inertial components and applies the current pulses to the auxiliary torquer, for reducting errors due to mechanical inaccuracies of said inertial components.
Claim 4
Dependent Claim
118 words
An inertial platform having mounted thereon a plurality of inertial components each for sensing a particular condition, each having a rebalance loop including a primary torquer means and pulse producing means for producing pulses indicative of the sense and amplitude of the condition being sensed, and each further having an auxiliary torquer means connected to a compensation and alignment means which is connected to pulse producing means of selected inertial components and produces variable amplitude current pulses in response to the pulses indicative of the sense and amplitude of the conditions being sensed by said selected inertial components and applies the current pulses to the auxiliary torquer, for reducting errors due to mechanical inaccuracies of said inertial components.
Claim 5
Dependent Claim
41 words
A combination as defined in claim 1 wherein said compensation and alignment means for producing variable amplitude current pulses includes a plurality of pulse circuits, each pulse circuit being connected to one pulse producing means and to one auxiliary torquer means.
Claim 6
Dependent Claim
75 words
A combination as defined in claim 2 wherein said plurality of inertial components includes three gyroscopes for sensing angular rate and displacement and three accelerometers, said compensation and alignment means for producing variable amplitude current pulses includes at least five pulse circuits connected to the auxiliary torquer means of each gyroscope with each group of five pulse circuits being connected to receive pulses from the three gyroscopes and two selected ones of the three accelerometers.
References Cited (Backward Citations)
US2985023A
Cited
US3238795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |