Design of a magnetostrictive (MS) actuator
نویسندگان
چکیده
منابع مشابه
Develpoment and Analysis of a Self-sensing Magnetostrictive Actuator Design
A self-sensing magnetostrictive actuator design based on a linear systems model of magnetostrictive transduction for Terfenol-D is developed and analyzed. Selfsensing, or the ability of a transducer to sense its own motion as it is being driven, has been demonstrated for electromechanical transducers such as moving voice coil loudspeakers and, most recently, piezoelectric distributed moment act...
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Magnetostriction is the change in shape of materials under the influence of an external magnetic field. The cause of magnetostriction change in length is the result of the rotation of small magnetic domains. This rotation and re-orientation causes internal strains in the material structure. The strains in the structure lead to the stretching (in the case of positive magnetostriction) of the mat...
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In this paper, we propose a model for dynamic magnetostrictive hysteresis in a thin rod actuator. We derive two equations that represent magnetic and mechanical dynamic equilibrium. Our model results from an application of the energy balance principle. It is a dynamic model as it accounts for inertial effects and mechanical dissipation as the actuator deforms, and also eddycurrent losses in the...
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ژورنال
عنوان ژورنال: Sensors and Actuators A: Physical
سال: 2008
ISSN: 0924-4247
DOI: 10.1016/j.sna.2007.12.034