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. 2020 Sep 14;11:4609. doi: 10.1038/s41467-020-18471-z

Fig. 2. Characteristics of the output performance of the individual DLES-mat on a 1 MΩ external load.

Fig. 2

a–f The generated voltages by repeated stepping motions with polytetrafluoroethylene (PTFE) shoes (four directions toward the north, east, south, and west for both the right foot and the left foot) on DLES-mats with an electrode coverage rate of a 0%, b 20%, c 40%, d 60%, e 80%, and f 100%. g The corresponding maximum voltage, minimum voltage, and peak-to-peak voltage from Fig. 2a–f with respect to different electrode coverage rates, showing clear increment trends with the increased electrode coverage rate. The error bars indicate the standard deviation. h The effect of different users wearing PTFE shoes on the output peak-to-peak voltage. Similar increment trends of relative magnitudes can be observed from different users, indicating the suitability of the DLES-mat design for individual position sensing. i The effect of different contact materials worn by the same user on the output peak-to-peak voltage, where similar increment trends can also be observed.