Scorpion's Slit Sensillum-Inspired Flexible Pressure-Position Sensor with Low Channel Consumption and High Localization Accuracy.

Flexible pressure sensors have been widely adopted in fields including e-skin and wearable devices. Compared with single-mode pressure sensing, pressure-position sensing can further provide positional information, endowing the system with multidimensional sensing capabilities. This is usually achieved using multiple sensing units. However, numerous sensing units often cause excessive wiring, large data volumes, and high energy consumption. Here, inspired by the slit unit collaborative mechanism of scorpions, designed a flexible pressure-position sensor (FPPS). It consists of a pressure-sensing layer, which is a single conductive layer, and a pressure-positioning layer, which contains three conductive layers. With only four signal channels, the FPPS can identify nine positional regions, thereby significantly reducing data complexity. Based on outstanding perception capabilities, such as low zero-drift (0.2%), fast response time (124 ms), and excellent stability (>14000), the FPPS is employed in digital input and control applications, demonstrating its potential in large-scale detection fields such as intelligent human-computer interaction.