Open loop single axes servo flight control system
Abstract
Abstract THIS DISCLOSURE IS DIRECTED TO A FLIGHT CONTROL SYSTEM FOR AN AIRCRAFT. A CONTROL SENSOR IS RESPONSIVE TO MOVEMENT OF THE AIRCRAFT ABOUT A PRESELECTED AXIS TO PRODUCE A CONTROL SIGNAL. AN AMPLIFIER CHANNEL INCLUDES A SATURABLE AMLIFIER UNIT WHICH OPERATES ON THE CONTROL SIGNAL AND DRIVES A SERVO MOTOR UNIT. THE SERVO MOTOR UNIT ACTUATES A CONTROL SURFACE OF THE AIRCRAFT TO CAUSE MOVEMENT OF THE AIRCRAFT ABOUT THE PRESELECTED AXIS. THE AMPLIFIER CHANNEL HAS A DELAYING FEEDBACK LOOP FOR ADDING A DELAYED REPRESENTATION OF THE AMPLIFIER CHANNEL OUTPUT SIGNAL TO THE CONTROL SIGAL TO VARY THE TRANSFER CHARACTERISTIC OF THE AMPLIFIER CHANNEL IN ORDER TO PRODUCE A SERVO DRIVING SIGNAL WHICH MATCHES THE SPEED-VERSUS-INPUT CHARACTERISTICS OF THE SERVO MOTOR UNIT. DISPLACEMENT OF THE CONTROL SURFACE IS THUS PROPORTIONAL TO THE CONTROL SIGNAL TO ELIMINATE THE REQUIREMENT OF A FOLLOW-UP ELEMENT.
Inventors
- 👤 James R Younkin
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |