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. 2019 Mar 8;9:3916. doi: 10.1038/s41598-019-40828-8

Figure 2.

Figure 2

Wireless pressure sensor based on GR/PDMS sponge. (a) Photograph of wireless pressure sensor. (b) Schematic showing the configuration of the GR/PDMS sponge under force. (c) Schematic diagram of a wireless system. (d) Conceptual diagram of an LC wireless pressure sensor. (e) The equivalent circuit and resonant frequency variation of the wireless pressure sensor.