Fig. 3: Fundamental design and principle of the smart insole system. | Microsystems & Nanoengineering

Fig. 3: Fundamental design and principle of the smart insole system.

From: Real-time pressure mapping smart insole system based on a controllable vertical pore dielectric layer

Fig. 3

a Principle circuit diagram of the smart insole system including three parts: insole with the 24-channel capacitive pressure sensor array, DAQ circuit module with the wireless transmitter, and PC terminal with the wireless receiver. b Configuration of the distribution of 24 sensors on the insole, named S1 to S24: S1–S12 distributed on the left connected to chip 1, and S13–S24 distributed on the right connected to chip 2. c Photograph of the smart insole system. d Capacitance variation–pressure revision curve of the insole for the system. e Capacitance–time response curves of 24 sensors obtained by using a similar force in sequence from S1 to S24

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