Fig. 3: The output characteristics of the BM-HMI.
From: Body-coupled minimalist human-machine interface for multifunctional touch detection
a In the event of the BM-HMI utilizing resistors of differing values, the maximum output voltage V1max at E1, the maximum output voltage V2max at E2, and the ratio of the maximum output voltage V2max to V1max when a finger makes contact with each touch point. b Voltage response signal when a finger contacts the touch points of BM-HMI. (c) The BM-HMI stimuli corresponding to ln(V2max/V1max) for various bending radii at different touch points. d The maximum output voltages (V1max and V2max) at different touch points on the BM-HMI with sixteen points. e The output voltages (V1 at E1 and V2 at E1) when touch P2 on the BM-HMI is subjected to mechanical stimuli at different frequencies. f The output voltage (V1 at E1) when touch P2 and P8 on the BM-HMI are alternately contacted
