Based on the structure and working principle of the pulse image sensor

the touch-pressure mechanical model is established by the finite element analysis software ABAQUS to simulate the touch-pressure sensation of the traditional Chinese medical pulse-taking.The flexible rubber film is discretized using the ABAQUS to simulate the finger pulse-taking.The forced deformation of the rubber film under different pulse-taking pressure is estimated.The reference element lattice is selected and the pulse waveforms are extracted depending on the area change of the reference element lattice.The characteristic parameters in time domain are obtained from the pulse signals.According to the analysis of the characteristic parameters under different pulse-taking pressure

it has revealed that the best pulse waveform can be obtained when the pulse-taking pressure is 12 N.This work has laid a foundation for the further study of the pulse condition attribute.