Voice coil linear motors, also known as Lorentz motors or scanner motors, are named for their structure resembling the coil of a speaker. They are fast-response direct-drive motors characterized by zero hysteresis and cogging effects, high frequency response, high acceleration, high speed, good force characteristics, easy control, small size, and high resolution. Abroad, voice coil motors are considered excellent servo drives. Depending on the configuration of the drive, feedback, controller, and control algorithm, voice coil motors typically achieve motion frequencies of 500-1000 Hz, and even higher.

The oscillating voice coil motor utilizes the technology of the rectangular series products, bending the rectangular series to achieve a certain angle positioning for angular oscillation. The RS series can provide an oscillating angle of 90 degrees and a torque of up to 50 N-m. The oscillating voice coil motor products are applied in laser technology for mirror positioners, oscillating valve brakes, oscillating positioning, and flight controllers, involving fields such as semiconductor industry, automation, and aerospace industries. The oscillating voice coil motor is also known as a "Galvanometer."

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 which 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 thrust generated by the voice coil motor depends on the design structure and the intensity of the current: F = β*L*I. The relationship between the 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 Electrical Equipment 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; special products include: vacuum high and low temperature stepper motors, vacuum nuclear radiation stepper motors, vacuum high and low temperature screw platform, vacuum radiation screw platform, vacuum electrodes, ion gauges. We offer customized development and design services based on customer-specific requirements.

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