The small micromotor has been precision processed to ensure accurate positioning and can be made smaller, lighter and thinner while maintaining the same output torque. Micromotors have many advantages. Now let’s take a look at the advantages of small micromotors:

1. Low speed and high torque: In small motors, the amplitude of ultrasonic vibration generally does not exceed a few microns, and the vibration speed is only a few centimeters per second to a few meters per second. The speed of the rotor when there is no slip is determined by the vibration speed, so the motor speed is generally very low, only a dozen to several hundred revolutions per minute.

2. Fast response speed and good control characteristics: The small motor is driven by friction, the moving body is light in mass, has small inertia, and has fast response speed. The starting and stopping time is on the order of milliseconds, so it can achieve high-precision speed control and position. control.

3. No electromagnetic interference: Small motors have no magnetic poles, so they are not affected by electromagnetic induction. At the same time, it does not produce electromagnetic interference to the outside world and is especially suitable for working environments under strong magnetic fields. In environments with strict EMI (electromagnetic interference) requirements, small motors are also suitable.

4. Flexible form and simple structure: The structure of the driving force generating part of the ultrasonic motor can be flexibly designed according to needs, and the structure is simple.