Fig. 5
From: Construction of liquid metal-based soft microfluidic sensors via soft lithography
Application of LM-based flexible circuits in self-powered sensors. a The diagram of LM circuits with linewidth 1Â mm and length 4Â cm. b Working mechanism of charge transfer and electric potential generation. c The voltage signals of the LM-based sensor under the increasing strain levels. d The voltage signals of the LM-based sensor when adhered to human skin and rubber glove, respectively. e The electrical responses for different forms of motions (beat and friction). f Different frequencies frictions and corresponding voltage signals with two forms: periodic and chaotic waveforms. g Real-time monitoring data of human arterial pulse obtained by the sensor and commercial detection software, respectively