Quasi-distributed pressure sensors with composite structural integration

Purpose and goal:

The aim of this project is to develop quasi-distributed pressure sensors embedded into composite structures. Both Fibre Brag Grating optical fibres and Carbon Nano Tubes embedded into the composite matrix will be used as sensors. Wing surface pressure monitoring as well as application into engine health monitoring and control system are addressed in this project.

The wing skin sensors could also have a broader industrial use within sails and energy sector applications. The project goal measure pressures in the range from 10 to 200 kPa. Expected results and effects: The project is expected to demonstrate quasi-distributed pressure sensors embedded into a simpler composite detail.

Expected effects: -At least 20% weight savings by merge of the structure and system functionality into one load-bearing component.

-Improved structural performance thru mixed material solutions and innovative functions enables further structural optimization, which leads to further weight savings and decreased energy consumption. -20% more effective development methods thru more efficient measurement methods during the product development cycle.

Approach and implementation: In the project, the two competing and/or complementing, imbedded, quasi-distributed pressure sensing system will target a couple of different applications: continuous pressure measurements in

composite wing skins and application into engine health monitoring and control system. Both Fibre Brag Grating optical fibres and Carbon Nano Tubes will be used as sensor materials.

The two , imbedded, quasi-distributed pressure sensing systems will be studied individually as well as in combination to be able to separate influence of temperature, strain and pressure.