Based on the ideal RSA experiment, both readout systems show large measurement error, with ZPM-8sw having at least one-time higher error than ZPM-8op. Here, we address this by developing two common RSA readout systems, zero potential method (ZPM) driving by switchers (8sw, as 1 amplifier and 8 switches are used) and ZPM driving by operational amplifier (8op, as 8 amplifiers are adopted), and compared their performances for RSAs with resistor value of less than 100 Ω. There is a lack of study that addresses RSAs with resistor values below 100 Ω.

Although several solutions have been reported, they mainly focus on RSAs with high resistance (≥100 Ω). However, the drawback is the crosstalk effect between adjacent elements, which will lead to high measurement error. One advantage of a resistive sensor array (RSA) with shared rows (M) and shared columns (N) is the reduced number of wires from M × N+1 to M + N which can greatly lessen the complexity and burden on wearable electronic systems.

Multisim 12 wire size