Embedded Fiber Bragg Grating (FBG) Arrays for Real-Time Wing Flex Monitoring
Core aerospace engineering and protocols for Fiber Optic Strain Sensing.
The Challenge of Inspecting Composite Airframes
Unlike aluminum airframes where fatigue manifests as visible surface cracks, carbon-fiber composite materials can suffer internal delamination and sub-surface core crushing without any outward cosmetic blemishes.
Embedded Nervous Systems for Modern Wings
AirplaneTwin integrates hair-thin optical fibers embedded directly between composite plies during manufacturing. Fiber Bragg Grating (FBG) sensors measure micro-strain deflections along the entire wing span during flight, detecting internal structural stress long before mechanical failure occurs.
- Fiber Bragg Grating Sensors: Shifting reflected light wavelength proportionally to mechanical strain.
- Electromagnetic Immunity: Optical light signals immune to wing fuel tank lightning strikes.
- Multi-Point Multiplexing: Interrogating hundreds of sensor points along a single optical fiber.
- Aerodynamic Load Alleviation: Feeding live wing flex data directly into active aileron dampening.
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