Fig. 6: Applications of the iontronic pressure sensor in fingertip pulse monitoring, smart high-precision weight scale, and human-robot interaction. | Nature Communications

Fig. 6: Applications of the iontronic pressure sensor in fingertip pulse monitoring, smart high-precision weight scale, and human-robot interaction.

From: Iontronic pressure sensor with high sensitivity over ultra-broad linear range enabled by laser-induced gradient micro-pyramids

Fig. 6

Thumb pulse measurements from the healthy human subject a in rest and b after exercise. c Capacitive response of the sensor under the chair to the volunteer of different weights, compared to the measurements from the commercial weight scale. The error bar represents the standard deviation. d Demonstration of high-pressure resolution with additional tiny pressure of 145 Pa detected under a large preload of 2 MPa. e Capacitance responses from two sensors on the robotic fingers during handling a balloon with a zoom-in view f shown in the inset. (IL of 20 wt% in a–d and 50 wt% in e).

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