Nuclear magnetic vibration instrument. According to today's headline query, the nuclear magnetic vibrator consists of a ring and a movable bed, next to the computer. The vibration of nuclear magnetic resonance (NMR) makes the magnetic lines of all water molecules in the human body in the same direction by using a strong magnetic field. At this time, the magnetic field of the magnetic resonance machine suddenly disappeared, and the magnetic lines of water molecules in the body suddenly returned to the original random arrangement. Tissue images were obtained by different relaxation times.