Fig. 6
Waveforms obtained with a floating oscilloscope and the probes connected to the external system. These waveforms are obtained after the external system requests a “Ping” to a specific device. In blue, HF current delivered by external system for uplink; in orange, output of external system’s demodulator, showing the filtered and amplified voltage across the shunt resistor when the floating device does an ACK ping message by load modulating the HF current burst (i.e., shows changes in the current flowing through the textile electrodes). (a) Participant 2, biceps brachii. (b) Participant 5, gastrocnemius medialis. (c) Participant 6, gastrocnemius medialis