Electromagnetic linear drive

作者: Mihai Grumazescu

DOI:

关键词: Linear motionAcousticsElectromagnetic coilMagnetic fieldLoudspeakerElectric currentBobbinMagnetFerromagnetismEngineeringElectrical engineering

摘要: An electromagnetic linear drive has a stationary unit, mobile unit centered and coaxially placed with respect to the an enclosing assembly made of diamagnetic material support protect unit. The contains coil, wound around bobbin non-conductive including magnet attached lateral face bobbin. includes fastened shaft which holds, positions further transfer motion driven device. Two units are used obtain controlled movement in both direction. permanent magnets magnetized direction their thickness, positioned arranged repulse each other. coils connected series magnetic fields opposed. is moved by synergetic attraction repulsive forces bi-directional rectangular electric current, generated bridge type circuit through units. This invention higher output force operating frequency created eliminating ferromagnetic materials. directly converts energy motion. It can be where precise required or applications such as pumps, robotics, loudspeakers underwater communications.

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