Actual airplane structure health monitoring systems are based on different technologies. Among them, Bragg sensor networks are one of the most remarkable ones. This kind of networks consist on several sensors distributed via optical fiber throughout the plane. There is only one control point, so the longitude of these fibers is often high. Experience shows that maintaining operations on the plain may cause the fiber to break or be deformed, and repairing these problems requires qualified personal and high costs.

I-SHM offers an alternative approach to this problem, avoiding the installation of large distance fiber links. The idea consists on deploying short fiber connections between an interrogator and a few Bragg sensors. Each interrogator will be communicated with the central node wirelessly.

The new concept introduced makes the system more reliable in terms of fiber damages caused by maintenance operations. Moreover, the installation of test devices on target zones on board is really easy and will not interfere with the rest of the network.

The main objective is to obtain an integral solution for the problem described. In order to achieve that, the following goals will be persuaded:

  • Development of a low power and small interrogator, capable to communicate with few Bragg sensors via optical fiber.
  • Development of a wireless communication network.
  • Development of communication protocols and monitoring software.

Additionally, a prototype will be built in order to validate all these concepts. That prototype will allow testing all the protocols and the structure health sensors through the wireless system.

  • TST
  • TTI
  • University of Cantabria

Start: July 1st, 2008
End: December 31st, 2009

Regional project included on the 2009 R&D&i Program for Industrial Projects inside the I Regional Plan for Scientific Research, Development and Technological Innovation 2006-2010.

1.000.000 EUR

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