Selective Measurement of Capacitive and Resistive Signals Using Simultaneous Position Control of Multiple Liquid Metal Droplets

Abstract

In this study, we report selective measurements of capacitive and resistive sensors via simultaneous position control of multiple liquid metal droplets (LMDs) in a flow channel. We evaluated the impedance of parts where LMDs pass between electrodes and selectively measured the sensor signals. Then, we succeeded in selectively measuring both the capacitive signals (0.5-5.0 pF) and the resistive signals (100-1000 Ω). The findings of this study will facilitate the integration of multiple sensors of different types in devices, thereby enhancing multifunctionality and efficiency.