If the reliability and stability of large-scale CT and MRI nuclear magnetic resonance imaging equipment need to be put in the first place, then the high-power industrial frequency UPS of Jingyuan Technology should be the first choice; If it is a computer, printer and other workstations with CT and MRI vibrations or general office applications, you can consider using a lower-cost ordinary high-frequency machine UPS;; If it is color ultrasound, biochemical instrument, blood ball instrument, operating room equipment, etc. We can use our improved version of the high frequency machine. On the basis of the original series of high-frequency machines of Jingyuan Technology, an AC filter is added, which can effectively eliminate ultrasonic artifacts and avoid wave-like radiation interference on two-dimensional echo images.