Voice Coil Linear Motors, also known as Lorentz Motors or Mirror Motors, are named for their structure resembling the voice coil of a horn. They are high-speed, direct-drive motors with zero magnetic hysteresis and cogging effects, featuring high-frequency response, acceleration, speed, good force characteristics, ease of control, compact size, and small resolution. Internationally, voice coil motors are regarded as excellent servo drives. Depending on the configuration of the drive, feedback, controller, and control algorithm, voice coil motors typically achieve a motion frequency of 500-1000Hz, and even higher.

Flattened coil motor has a shorter stroke compared to rectangular coil motor for the same volume, but its advantage lies in its lower profile. It offers a thrust of up to 500N and a stroke of 25mm. The flat series is an ideal product for generating short stroke X-Y motion, primarily targeting the semiconductor and micro-machine tool industries.

Its basic working principle is that when an electric conductor passes through a magnetic field, it generates a force perpendicular to the lines of the magnetic field. The magnitude of this force depends on the length of the conductor passing through the field, the strength of the magnetic field, and the intensity of the current. The voice coil motor converts actual current into linear thrust or torque, and their magnitudes are proportional to the actual current passing through. The magnitude of the thrust produced by the voice coil motor depends on the design structure and the intensity of the current: F = β*L*I. The relationship between current and the generated force is manifested as the force sensitivity Kf in linear voice coil motors and as the torque sensitivity Kt in rotating voice coil motors. In our design, we define the unit of Kf as N/A and the unit of Kt as N·m/A.

Yunxi Electromechanical Technology Co., Ltd. of Langfang, a technology R&D enterprise in collaboration with universities, specializes in: DC frameless torque motors, solenoid motors, stepper motors, servo motors, and screw displacement tables; as well as special products: vacuum high/low temperature stepper motors, vacuum nuclear radiation stepper motors, vacuum high/low temperature screw platform, vacuum radiation screw platform, vacuum electrodes, ion gauges. We offer customized development and design services according to customer-specific requirements.

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