A review of structural improvements and applications of miniaturized ultra-precision motors

Short-stroke ultra-precision motor with high frequency response, high precision, high speed, etc., without any mechanical transmission structure linear motion, you can directly convert electrical energy into linear motion linear motor, because of its appearance similar to the sound, so called the voice coil motor, in automotive manufacturing, electronics, as well as semiconductors, biomedical and other fields have been widely used. This paper first describes the theoretical basis of the voice coil motor, then the existing voice coil motor on the structure of the generalized review; then the voice coil motor control method which key technology, compare the characteristics of various methods; Finally, the application of short voice coil motor is reviewed, and the future development trend of prospects.