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Fig. 4 | Micro and Nano Systems Letters

Fig. 4

From: Hollow polydimethylsiloxane (PDMS) foam with a 3D interconnected network for highly sensitive capacitive pressure sensors

Fig. 4

a Pressure-response (relative capacitance) curves as function of the applied pressure for three weight concentrations of PDMS: 30 wt% (blue squares), 50 wt% (red circles), and the bare PDMS sample (black triangles). b Hysteresis characteristics of the PDMS-30-based pressure sensor. c Sensitivity measurements S in three different pressure ranges (PDMS-30). d Capacitance responses of the PDMS-30-based pressure sensor under various applied pressures. e Working stability and durability outcomes of the PDMS-30-based pressure sensor after 2000 cycles under applied pressure of 120 kPa. f Images of the index finger for three different bending angles. g Capacitance responses of the bending of the index finger

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