Abstract

Due to the multiaxial property of mechanical stimuli from human motion, flexible sensors capable of multiaxial detection have enjoyed steady growth of interest. Utilizing the distinctive anisotropic multilayer structure of carbonized multilayer facial tissue (CMFT), we successfully prepared flexible CMFT sensors capable of anisotropic strain sensing and pressure detection. Moreover, an integrated sensor was developed through orthogonally stacking two CMFT sensors, realizing the detection of mechanical stimuli on three orthogonal axes (multidirectional strain sensing in the XY plane and pressure sensing along the vertical Z-axis). Finally, the applications of the integrated sensor for monitoring complex waist movement as well as heel falling and lifting were demonstrated, indicating the great potential of CMFT sensors in human motion detection.

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