Fibre Optic Bleed Air Overheat Detection System

The new OHDS technology is qualified for airborne applications, and will be introduced in all future Airbus A350 aircraft.

The new OHDS technology is qualified for airborne applications, and will be introduced in all future Airbus A350 aircraft.

Fibre Optic Bleed Air Overheat Detection - The System

Fibre Optic Bleed Air Overheat Detection - The System

Fibre Optic Bleed Air Overheat Detection System

Fibre Optic Bleed Air Overheat Detection System

Contact

Saab’s Fibre Optic Bleed Air Overheat Detection System provides real time monitoring of bleed air piping to detect hot air leakage. Robust and reliable detection – with precise fault isolation. The new OHDS technology is qualified for airborne applications, and will be introduced in all future Airbus A350 aircraft.

Saab is one of just a few companies globally with the expertise to develop entire aircraft systems, this ensures understanding of customer requirements, equipment architecture and integration. Saab has the unique position to take inhouse developed technology – common technology, and adapt this for either military aircraft or for commercial use.The Fibre Optic Bleed Air OHDS is a new result of this way of working.

Technology

  • Saab is using Fibre Bragg Grating (FBG) sensor technology for measuring temperature along a fibre optic cable
  • This technology will allow for a large number of sensing points that can be located a few centimeters apart, each working as an individual temperature sensor
  • The sensing fibres can be distributed in the aircraft to meet the monitoring needs and will sustain high vibration and temperature levels
  • Actual temperature measurements with ability to trace trends and introduce smart alarm functions – not only an alarm threshold

The Saab Experience

  • First in bringing a fibre optic based thermal sensor system to aerospace applications
  • Knowledge in bleed air leak detection and integration of the optic parts into in-house developed avionics, computers and software
  • Manufacturing and supply of aircraft optic OHDS system
  • Established supply chain for optic fibres and interrogators