The figures show a bearing surface section for feasibility testing of a prototype test carrier (VLA - Very Light Aircraft) at the Fraunhofer Institute for structural durability LBF in Darmstadt, Germany. The monitoring in this case is of the mechanical stress of the structure, but the automatic acquisition of weight and center of gravity are equally important.
Fiber-optic Bragg sensors and interrogators are also being used in the new Business Jet Comp Air CA-12. The US company Comp Air commissioned Chandler Monitoring Systems Inc. (CMS) with the system development, using interrogators, strain and temperature sensors from HBM's technology partner Micron Optics Inc. and optical transducers of the company Cleveland Elecric Laboratories for the fire protection zone of the engine compartment.
This 10-person turboprop aircraft is the first aircraft in the world to be built completely of composite materials. A prototype with installed strain and temperature sensors was tested in 2007, the necessary FAA certification of the aircraft should be assigned just 30 months later. Comp Air Aviation will once again be fulfilling a trendsetter role in aicraft construction as this is the first time a fiber-optic monitoring system will be used.