▎ 摘　　要

NOVELTY - The device comprises a shell formed with a cavity structure. Two ends of the cavity structure are provided with a light source and a spectrometer. An elastic portion is fixed in the cavity structure of the shell. The elastic portion is fixed between the light source and the spectrometer. An outer wall of the elastic portion is connected with an inner wall of the shell. An inner wall of the annular structure is connected with a graphene film. A metal particle layer is fixed on a side of the graphene film close to the light source. The arc-shaped protrusions are arranged on the inner wall of the elastic portion of the ring structure. USE - Acceleration measuring device based on noble metal nano-particles. ADVANTAGE - The device changes distance between metal particles in the metal particle layer, so that the light signal passing through the metal particle layer and the graphene film reaches the spectrometer is changed. The spectrum of the light signal is detected by the spectrometer to obtain the change condition of the light signal. The corresponding relation of the acceleration to be measured is obtained according to the change condition of the light signal. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of acceleration measuring device based on precious metal nanoparticles.