The function of high-frequency magnon is three times that of magnetostatics. High-frequency magnon is used in mechanical equipment in national defense, aviation, aerospace, communication, electronics, automobiles, household appliances and other industries. The function is to find early faults, simulate actual working condition evaluation and structural strength test. The working intensity frequency is 90 dB, and the static magnetic field is 30 dB, which is three times that of the static magnetic field.