Figure 4
(a) Relative change in current versus applied pressure; (b) Static current response under varying pressure; (c) Dynamic instantaneous current response to varying pressure; (d) Schematic diagram of the main structural change in the PPNWF pressure sensor during the compression process; (e) Response to applied pressure with various frequencies; (f) a typical signal of current change at 25 Hz in (e); (g) Durability recorded by repeated loading-unloading cycles at a frequency of 25 Hz and a pressure of 10 kPa.
