Results 181 to 190 of about 1,153,600 (235)
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The vibration controller design using positive position feedback control
2013 13th International Conference on Control, Automation and Systems (ICCAS 2013), 2013We propose vibration controller design using positive position feedback (PPF) control. The five pairs of electromagnetic actuators and sensors are used to control strip vibration. Strip was modeled using finite element modeling (FEM). To reduce the order of the large scale model, the Krylov subspace technique was used.
WonChul Jung, IlHwan Noh, Dongyeop Kang
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IEEE Transactions on Plasma Science, 1990
A set of sensing coils to measure plasma position is described. The possibility of placing these coils outside a vacuum vessel (as a resistive shell) is considered by analyzing a feedback system for controlling otherwise unstable axisymmetric motion.
A.J. Wootton, L. Wang
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A set of sensing coils to measure plasma position is described. The possibility of placing these coils outside a vacuum vessel (as a resistive shell) is considered by analyzing a feedback system for controlling otherwise unstable axisymmetric motion.
A.J. Wootton, L. Wang
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Positive Position Feedback (PPF) Control
2013This chapter presents the design of a positive position feedback (PPF) controller based on low-pass filters and band-pass filters. In Sect. 6.1, the principle of the PPF controller is presented based on the single degree of freedom (SDOF) case. In Sect.
Qibo Mao, Stanislaw Pietrzko
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Proceedings of the IEEE, 1970
The concept of intermittent positive control is to issue commands to normally uncontrolled aircraft only when it is necessary to avoid a hazardous midair circumstance. This concept would depend on a hardware environment which provides reliable location and identification of all aircraft in the protected airspace. A digital computer would use this track
K.E. Willis, J.B. Currier, P. Flanagan
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The concept of intermittent positive control is to issue commands to normally uncontrolled aircraft only when it is necessary to avoid a hazardous midair circumstance. This concept would depend on a hardware environment which provides reliable location and identification of all aircraft in the protected airspace. A digital computer would use this track
K.E. Willis, J.B. Currier, P. Flanagan
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Positive controllability of positive dynamical systems
Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002The paper is devoted to a study of constrained controllability and controllability for linear dynamical systems if the controls are taken to be nonnegative. In analogy to the usual definition of controllability it is possible to introduce the concept of positive controllability. We concentrate on approximate positive controllability for linear infinite-
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Fastening and Assembly Solutions and Technology, 2023
IKO’s positioning tables provide highly precise movement and positioning control. There is something for everyone in IKO’s positioning table range
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IKO’s positioning tables provide highly precise movement and positioning control. There is something for everyone in IKO’s positioning table range
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Learning force control with position controlled robots
Proceedings of IEEE International Conference on Robotics and Automation, 2002The paper applies a previously presented method for accurate tracking of paths to force control. This approach is very simple since it does not require a joint torque/motor current interface but only a positional interface. It can be applied with elastic end-effectors (sensors) as well as with stiff environments where most elasticity is in the robot ...
Lange, F., Hirzinger, G.
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Independent Modal Space Control With Positive Position Feedback
Journal of Dynamic Systems, Measurement, and Control, 1992This study presents an Independent Modal Space Control (IMSC) algorithm whose modal control forces are generated based on a Positive Position Feedback (PPF) strategy. This is in contrast to conventional modal controllers that rely in their opeation on negative feedback of the modal position and velocity.
Baz, A., Poh, S., Fedor, J.
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Torque-position transformer for task control of position controlled robots
2008 IEEE International Conference on Robotics and Automation, 2008Joint position control is a dominant paradigm in industrial robots. While it has been successful in various industrial tasks, joint position control is severely limited in performing advanced robotic tasks, especially in unstructured dynamic environments.
Oussama Khatib +3 more
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Mechanisms controlling division-plane positioning
Seminars in Cell & Developmental Biology, 2010A critical and irreversible step in the cell division cycle is cytokinesis which physically separates the two daughter cells. This event is consequently subject to tight spatial and temporal regulation. This review focuses on the spatial regulatory mechanisms controlling the position of the division plane.
Almonacid, Maria, Paoletti, Anne
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