Results 131 to 140 of about 698 (181)
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Beam-stabilized optical switch using a voice-coil motor actuator
Journal of the Franklin Institute, 2011Abstract This paper presents the design, analysis, and implementation of a beam-stabilized optical switch using a voice-coil motor actuator. A closed-loop control system using a proportional-integral-derivative (PID) controller is developed to stabilize the beam at the desired angle to maximize the optical power detected by a photodiode. Experimental
Rached Dhaouadi, Taha Landolsi
exaly +2 more sources
Digital Control of PID for Voice Coil Actuator and System Simulation
Advanced Materials Research, 2011This paper introduced the principle and method of designing for Voice Coil Actuator based on the characteristic of Voice Coil Actuator. The Digital Control Of PID For Voice Coil Actuator are presented to servo the system of one dimension, System simulation results were given out.
Bang Jun Lu, Bao Guo Kang, Wu Jun Zhang
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Development of an Optimally Designed Voice-Coil Actuator
2021 9th RSI International Conference on Robotics and Mechatronics (ICRoM), 2021Masoud Shariat Panahi, Ali Sadighi
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Planar fabrication of a mesoscale voice coil actuator
2014 IEEE International Conference on Robotics and Automation (ICRA), 2014Mesoscale robots are devices with characteristic dimensions in the centimeter to millimeter scale, with feature sizes ranging from millimeters to micrometers. Due to the physics involved in scaling down conventional motors, such robots frequently require novel approaches to actuation. Actu- ation can have a very significant effect on robot performance,
Benjamin Goldberg 0003 +3 more
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The technology and application of voice coil actuator
2011 Second International Conference on Mechanic Automation and Control Engineering, 2011Based on the Lorentz Force Principle, voice coil actuator is a new-style versatile direct drive motors with special structure. Easy to be controlled, with high acceleration, high speed, high reliability, pony size, smooth force and fast actuation make it an ideal replacement for conventional electric motor.
X.M. Feng +4 more
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Space Mapping Optimization of a Cylindrical Voice Coil Actuator
IEEE International Conference on Electric Machines and Drives, 2005., 2005An optimal design problem of an electromagnetic actuator is formulated by defining the set of design variables, the constraints, and the optimality criterion. Solving such a problem is a difficult and time-expensive task when many variables, constraints, and conflicting objectives are involved, and when high accuracy is required.
Encica, Laurentiu +3 more
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The Journal of the Acoustical Society of America, 1994
A voice coil actuator (50) includes a magnetic flux conductive material core (52, 52'), having a backplate (53) and a magnet (54), and an electrical current conductive coil (56, 56'). The core (52, 52') has a first surface (58, 58', 58'') and a continuous channel (60) disposed in said first surface (58, 58', 58'').
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A voice coil actuator (50) includes a magnetic flux conductive material core (52, 52'), having a backplate (53) and a magnet (54), and an electrical current conductive coil (56, 56'). The core (52, 52') has a first surface (58, 58', 58'') and a continuous channel (60) disposed in said first surface (58, 58', 58'').
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Modeling and controller design for a voice coil actuated engine valve
Proceedings of 2005 IEEE Conference on Control Applications, 2005. CCA 2005., 2005This paper presents a physical model of a spark ignition (SI) engine valve actuated by a voice coil actuator (VCA) and proposes a novel control strategy that achieves fast transitions and low seating velocities with high precision position control.
Md Forhad Khandaker +2 more
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An Acoustic Micromixer Using Low-Powered Voice Coil Actuation
Journal of Microelectromechanical Systems, 2018A low-powered acoustic micromixer has been presented in this paper. This newly invented system consists of an open-top mixing chamber and a permanent magnet mixer base. A voice coil is attached to the bottom of the mixing chamber with a polydimethylsiloxane membrane.
Noori Kim +3 more
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Optimal voice coil actuators for needle-free jet injection
2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014We present a scaling model for electrically-actuated needle free jet injectors, establishing the relationship between injection volume and motor size. Using an analytical electromagnetic model for the motor, we derive an optimal motor design, and show that this design is approximately scale-invariant.
Bryan P. Ruddy +2 more
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