Surface Undulation Detection System Using Wearable Artificial Skin Layer with Strain Gauge

In this study, a simulation of a real-time surface undulation detection system based on machine learning techniques was developed. In this system, surface undulations are sensed using a sensor called the “strain-gauge-sandwiched rubber artificial skin layer,” and the digitized undulation data are processed by fast Fourier transform and input into a single-layer neural network. Preliminary results suggest that the proposed system is capable of discriminating convex deformations ranging from 0 to 60 μm in height.