Fig. 2: Design features and parametric optimization of the sensing array.
a Sensing mechanism and cross-sectional schematic illustration of the sensing node. b Schematic defining the key parameters of the magnetoelastic model. c Relationship between Bz and z for varying Br, rpm, and t. d Relationship between By and y at different z. e Stress-strain curves for elastomer materials of different hardness. Simulated crosstalk interference in Z-direction (f) and X/Y-directions (g) between adjacent sensing nodes as a function of node spacing. h Simulated tilting angles of magnet under uniformly applied normal and shear stress distributions. i Absolute ratios of elastomer deformation errors relative to their maxima along X-, Y-, and Z-directions under uniform normal and shear stresses. j FEA of stress reduction structures.
