Static force characteristics of electromagnetic actuators for Braille screen | Zendy

Ivan Yatchev | Zendy; Krastio Hinov | Zendy; Iosko Balabozov | Zendy; Kristina Krasteva | Zendy

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Static force characteristics of electromagnetic actuators for Braille screen

Author(s) -

Ivan Yatchev,

Krastio Hinov,

Iosko Balabozov,

Kristina Krasteva

Publication year - 2011

Publication title -

facta universitatis - series electronics and energetics

Language(s) - English

Resource type - Journals

eISSN - 2217-5997

pISSN - 0353-3670

DOI - 10.2298/fuee1102157y

Subject(s) - braille , magnet , actuator , magnetic field , electromagnetic field , finite element method , physics , acoustics , mechanical engineering , computer science , engineering , electrical engineering , structural engineering , quantum mechanics , operating system

Several constructions of electromagnetic actuators with moving permanent magnet for Braille screen are studied. All they are formed from a basic one that con- sists of two coils, core and moving permanent magnet. The fini te element method is used for modelling of the magnetic field and for obtaining the electromagnetic force acting on the mover. The static force-stroke characteristi cs are obtained for four differ- ent constructions of the actuator. The constructions with f erromagnetic disc between the coils ensure greater force than the ones without disc and can reach the required minimum force.

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