Laboratory investigation of an autopilot utilizing a mechanical linkage with a dead spot to obtain an effective rate signal / Ernest C. Seaberg.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
National Advisory Committee for Aeronautics,
1955.
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| Series: | Technical note (United States. National Advisory Committee for Aeronautics) ;
3602. |
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| Abstract: | The roll automatic pilot investigated operates on a nonlinear principle, termed the frontlash principle, whereby a dead spot is incorporated in the servomotor feedback linkage to obtain an effective rate signal by reducing the phase lag of the servomotor. By application of the frontlash principle, the servomotor feedback linkage improves the servomotor phase response in a manner similar to that which would be obtained with the use of a rate gyroscope. However, the servomotor travel resulting from a given position-gyroscope displacement is decreased when the frontlash feedback linkage is used. Although the present application was for a roll automatic pilot, its application to other control systems appears feasible. |
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| Item Description: | "December 1955." NACA TN Number 3602. |
| Physical Description: | 27 pages : illustrations ; 27 cm. |
| Bibliography: | Includes bibliographical references. |
| Action Note: | committed to retain |