Figure 2
(a) Relative resistance change vs. pressure from 0 to 500 kPa of different sensors (g1, g2 and g3). (b) Relative resistance change vs. pressure from 0 to 2 kPa. (c) Sensing mechanism of how resistance changes with pressure in loading and unloading. (d) Relative resistance change of pressure of sensor g3 under different pressures. (e) Relative resistance change vs. pressure from 0 to 500 kPa of five pressure sensors g1a-g1e with the same weight of 0.08 g. (f) Repeatability response of g2 in 500 loading-unloading cycles under the pressure of 20 kPa. (g) Repeatability response of g2 in 500 loading-unloading cycles under 200 kPa. (h) Enlarged view of (g) after about 250 cycles.
