OptiStructures: Fabrication of Room-Scale Interactive Structures with Embedded Fiber Bragg ...
summary
Embedding Fiber Bragg Grating sensors into cast materials lets room-scale objects both sense and display: optical fibers carry light, FBG gratings reflect wavelength shifts from vibrations, and a custom fiber extruder programs fiber paths inside CNC-milled molds before casting. Two full-scale prototypes—an interactive wall and table—demonstrate sensing across eight users, classifying taps and subtle floor vibrations (walking) without batteries, using multiple sensing points along a single fiber and simple end-point interrogation.
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