On-line structural health and fire monitoring of a composite personal aircraft using an FBG sensing system
2008
We report in this paper on the design and development of a novel
on-line structural health monitoring and fire detection
system based on an array of optical fiber Bragg grating (FBG) sensors and interrogation system installed on a new, precommercial
compact aircraft. A combined total of 17 FBG sensors - strain, temperature and high-temperature - were
installed at critical locations in an around the wings, fuselage and engine compartment of a prototype, Comp Air CA 12
all-composite, ten-passenger personal airplane powered by a 1,650 hp turbine engine. The sensors are interrogated online
and in real time by a swept laser FBG interrogator (Micron Optics sm125-700) mounted on board the plane. Sensors
readings are then combined with the plane's avionics system and displayed on the pilot's aviation control panel. This
system represents the first of its kind in commercial, small frame, airplanes and a first for optical fiber sensors.
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