▎ 摘　　要

NOVELTY - The device has a power supply unit (3) connected with a cathode through a right end of a lead connection switch. A lower end of a signal sampling resistor (5) is connected to an end of a capacitor type detector (6) through a wire. A signal sensor (4) is connected with the signal sampling resistor along parallel direction. A cantilever beam (1) is arranged with the capacitance-type detector that is arranged with a round-shaped graphene film. The capacitor type detector generates vibration effect under influence of sound wave. USE - Graphene film displacement sensing based vibration measuring device. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a graphene film displacement sensing based vibration measuring device. Cantilever beam (1) Power supply unit (3) Signal sensor (4) Signal sampling resistor (5) Capacitor type detector (6)