Fig. 2: Design features of a multi-axial sensor. | npj Flexible Electronics

Fig. 2: Design features of a multi-axial sensor.

From: Wireless, battery-free multi-axial sensor for augmented reality-assisted monitoring at skin interfaces

Fig. 2

a Schematic illustration of a tri-layered cantilever strain gauge (PI/Au/PI) on glass with a cavity, and b microscopic image of Au trace of the strain gauge. c Cross-sectional schematic illustration of the multi-axial sensor. d FEA results of the multi-axial sensor under a pressure of 10 kPa and a shear stress of 10 kPa. e Photograph of top view of the multi-axial sensor consisting of four cantilevers without a soft cover. f Schematic illustration and (g) photograph of three-axis testing machine, including XYZ-axis actuator and XYZ-axis load cell to apply and measure pressure and shear stress.

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