Multi-Modal Fingertip Sensor

We present a novel multi-modal tactile sensor which consists of an infrared proximity sensor and a barometric pressure sensor embedded in an elastomer layer with potential use in prosthetic devices. Signals from both sensors are fused to measure proximity (0-10mm), contact (0N), force (0-50N) and localize impact at five spatial locations and three angles of incidence.

Diagram of the fingertip sensor
Graph showing the sensor responding to contact and increasing the barometer signal.