2,177 resources related to Displacement control
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2012 10th World Congress on Intelligent Control and Automation (WCICA 2012)
A. Intelligent Control B. Control Theory and Control Engineering C. Complex Systems and Intelligent Robots D. Others
Bring together researchers active in the field of advanced motion control to discuss current development and future perspectives in motion control technology.
Chinese Control and Decision Conference is an annual international conference to create a forum for scientists, engineers and practitioners throughout the world to present the latest advancement in Control, Decision, Automation, Robotics and Emerging Technologies.
2012 IEEE International Conference on Automation and Logistics (ICAL)
Automation, logistics, and related areas.
Asian Control Conference is a major international conference sponsored by Asian Control Association. ASCC 2011 will be an excellent opportunity for automatic control researchers and engineers from academia and industries to exchange their research results and new findings.
Theory and applications of industrial electronics and control instrumentation science and engineering, including microprocessor control systems, high-power controls, process control, programmable controllers, numerical and program control systems, flow meters, and identification systems.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control was the number-three journal in acoustics in 2002, according to the annual Journal Citation Report (2002 edition) published by the Institute for Scientific Information. This publication focuses on the theory, design, and application on generation, transmission, and detection of bulk and surface mechanical waves; fundamental studies in physical acoustics; design of sonic ...
Electron Devices, IEEE Transactions on, 2001
A simple expression for the number of bits that can be programmed per unit time (bandwidth or BW) in flash memories with the ramped gate programming (RGP) technique is used to optimize memory BW and derive design curves. Preliminary experimental results obtained with common-ground NOR flash memory arrays realized with 0.25 μm technology show that memory BW can: (1) exceed ...
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on, 1995
In comparison with robot manipulators, it is acknowledged that primate limbs excel robots in movements requiring compliance control. After certain salient properties of the neuromuscular system have been identified in our earlier works, a neuromuscular-like controller was proposed. This paper extend our findings in modeling the biological muscle-reflex mechanism to actual applications. Experiments on a PUMA 560 robot demonstrated that ...
Magnetics Conference, 2006. INTERMAG 2006. IEEE International, 2006
Switched reluctance motor (SRM) has simple structure with a winding only on the stator and not on the rotor. The costs are lower than other motors due to its simple construction. It is easy to implement a high speed drive system and both the torque and efficiency of the unit volume are highly superior to all others. The simplest excitation ...
Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE, 1991
Conventional slip-recovery drives are plagued with a low overall power factor, due to the naturally commutated power convertor in the rotor circuit. One solution consists of adding two GTOs to the converter bridge, in order to transform it into a fully controllable inverter, which allows for independent control over voltage and displacement factor. When appropriately controlled, this converter is capable ...
Microelectromechanical Systems, Journal of, 2007
A novel electrolysis-bubble-actuated micropump based on the roughness gradient design in the microchannel is reported in this paper. This micropump is implemented by taking advantage of both the electrolysis actuation and the surface tension effect. The surface tension effect is controlled via the periodic generation of electrolytic bubbles and the roughness gradient design of microchannel surface, which results in the ...
Hong Xu; Qunxong Zhu; Daming Wu 2010 International Conference on Mechanic Automation and Control Engineering, 2010
This thesis introduces quality control factors on polymer precision injection molding, discusses the control principle of precise injection molding machine and proposes an approach of using ultrasonic wave to conduct real time on-line measurement of melt density and applying the density to feedback control the injection weight. This approach can significantly improve the repeated precision of the injection weight of ...
T. Nakagawa; N. Sagara 1997 IEEE International Magnetics Conference (INTERMAG), 1997
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Szabolcs SÖvÉnyi; R. Brent Gillespie IEEE Transactions on Control Systems Technology, 2007
A driver's body functions as a pathway that transmits vehicle motion and inertia forces to the vehicle's manual control interface, producing unintended commands and degrading driver/vehicle performance. In this paper, we apply a model-based cancellation controller to mitigate this effect, called biodynamic feedthrough. Using measurements of vehicle acceleration and hand/interface interaction force, we first construct a model of the body ...
H. M. Allam International Workshop on Robot Sensing, 2004. ROSE 2004., 2004
This work describes the design and performance of a single element tactile display using shape memory alloy wire (SMA) as an actuator which when pulsed with an electrical current (in effect heating the metal), can be raised and lowered to approximate the desired output signal. The system is designed in order to obtain a linear approximation between displacement and resistance ...
Gao Bo; Fu Yong-ling; Pei Zhong-cai IEEE International Conference Mechatronics and Automation, 2005, 2005
In this paper, an electrically driven variable displacement servo pump was designed to meet the requirement of dual-variable control in integrated electro-hydrostatic-actuator. The driving force of variable displacement mechanism of the servo pump was analyzed, and the mathematical model was created. A DC servo motor was selected as the executive unit of the variable displacement mechanism, the structure of the ...
This chapter contains sections titled: Introduction Review of Multiobjective Optimization Techniques Formulated MO Optimization Model Proposed Interactive Displaced Worst Compromise Programming Method Proposed Interactive Procedure with WC Displacement Implementation Numerical Results Conclusions References
The visual field of each eye is split in half. Approximately half of the axons from each eye cross over so that the left hemisphere of the brain processes the right half of the visual fields while the right hemisphere processes the left half. The optic nerves lead to the lateral geniculate nuclei and then proceed to the primary visual (striate) cortex. Here, according to the research of Hubel and Wiesel, groups of neurons are organized into short lines that fire when an edge, corresponding to that particular orientation, enters the visual field. Half of the neurons process signals that originated in the left eye (L layers) and the other half process signals from the right eye (R layers); the Land R layers are interleaved. The visual image is thus dissected into many short edges, the first step in the hierarchical buildup of more complex geometrical shapes. All possible edge orientations are detected by a layer of simple (S) cells; these feed a layer of complex (C) cells which bestow invariance with respect to lateral displacement. A one-dimensional model is presented in which a to-element visual signal is analyzed by an S1C1 pair of layers feeding an S2C2 pair. The model looks at (1) a white strip gradually lowered over a black background; (2) a white bar moving downward; and (3) a white bar that expands until it covers the entire black background. Some rules for designing one-dimensional pattern-recognition models are derived. Self-organization of the cortex is considered. A scheme is presented by which one cell in a group of cells captures the input for itself and suppresses all of the other neurons. A somewhat more complicated neural network is examined as it goes through learning, organizing, and testing phases. Because the same techniques are common to real and artificial neural net works (ANNs), a section is devoted to ANNs. Associative memory, the task-assignment problem, and back propagation are considered. Various ?>household chores?> associated with vision are also discussed as follows: the constant jerky movements of the eye (saccadic motion) and compensation for it; control of the lens opening (pupillary reflex); distance accommodation; and binocular convergence.
In this paper we propose a mechanism for motivational competition and selection of behavior. One important characteristic of this mechanism is that the selection of behavior is modelled as an emergent property of a parallel process. This in contrast with mechanisms for behavior selection and motivational competition proposed earlier, which are based on a hierarchical. preprogrammed control structure. We show that selection of behavior can be modeled in a bottom-up way using an activation/inhibition dynamics among the different behaviors that can be selected. There is no weighing up of behaviors in a cognitive manner and neither are hierarchical or bureaucratic structures imposed. The paper elaborates upon the results we obtained with simulated creatures based on this mechanism. It draws parallels between characteristics observed in animal behavior and characteristics demonstrated by our artificial creatures. Examples are: displacement behavior, opportunistic behavior, fatigue, selective attention, and so on.
Natural and experimental deformation of fault rocks show that fluid flow and mineral reactions are linked to fracturing in a nonlinear feedback relationship that potentially affects the displacement and stress histories of large faults. These interactions spawn instabilities that are expressed as episodic seismic events involving cataclasis, which alternate with slow, aseismic deformation involving pressure-solution creep, as well as healing and sealing by fluid-assisted mass transfer. This chapter focuses on the timescale of these processes during the earthquake cycle, with special emphasis on the evolution of rheological and transport properties of fault rock during the interseismic period. Fracturing weakens faults dramatically by enhancing the kinetics of pressure-solution creep and of mineral reactions. Therefore, during the postseismic period and initial part of the interseismic period, weakening is faster than fault strengthening by healing and sealing of fractures. During the interseismic period, mass transfer associated with fluid-assisted chemical reactions smoothes asperities on fault surfaces, heals fractures and enhances the formation of a foliation parallel to the fault plane, and decreases permeability. If advective fluid inflow is significant, this can increase pore-fluid pressure and reduce effective shear strength, at least locally within the fault. In the long term, however, the combined effect of fracturing, pressure-solution creep, and sealing is to restore the rheological and transport properties of the fault during the interseismic period, setting the stage for renewed stress build-up and seismicity. We demonstrate the salient characteristics of fluid-assisted fault weakening and strengthening with a one-dimensional model of an idealized fault zone undergoing simple shear at constant velocity. The model shows that the kinetics of the weakening a nd strengthening processes determine the relative rates of shear stress decrease and increase during the interseismic period. The kinetics of dissolution precipitation and mineral reactions are therefore expected to exert an important control on the recurrence time of earthquakes.
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