White Paper - Fibre Optic Sensing for Flight Test Instrumentation

Fiber Optic Sensing : The challenges of miniaturization, ruggedization and integration to enhance flight test instrumentation capabilities


A White Paper presented at ETTC 2022


Ghislain Guerrero1,Rémy Pelluault1, Jan Koch2 Wolfgang Schippers2, Philip Guehlke2, Christian Waltermann2, Nassim Salhi3, Didier Pohl3, Minh Chau Phan Huy3


1 Safran Data Systems, 5 Avenue des Andes, 91940 Les Ulis, France
2 FiSens GmbH, Salzdahlumer Str. 196, 38126 Braunschweig, Germany
3 Safran Tech, Rue des Jeunes Bois Châteaufort, 78772 Magny-Les-Hameaux, France



Fibre Optic Sensors For Flight Test Instrumentation

One of the main challenges encountered by flight test instrumentation is to offer adequate means to deliver accurately the continuously increasing amount of data requested by design offices while minimizing the intrusiveness on the test vehicles. This contradictory trend applies to all stages of the instrumentation chain: sensing part, cabling, data acquisition units and communication.

Nowadays, new Fibre Optic sensors are gaining ground in various industries due to their unique characteristics. However, their optical interrogation has been very challenging, particularly for the demanding environments found in aerospace applications.

To overcome requirements interlinked between performance and miniaturization, a new innovative fibre-integrated approach is presented in this white paper, with a focus on the reduction and optimization of all necessary materials and components.

This paper aims at highlighting the benefits of Fibre Optic Sensing technology compared to legacy sensing methods as well as sharing an initiative to integrate this technology in an existing compact and modular data acquisition unit compliant with harsh environments.


Download White Paper, Fibre Optic Sensors For FTI

Key words:

Flight Test Instrumentation, Fibre Optic Sensing, Fiber Bragg Grating, Spectrometer, Interrogation system.



Reduced weight, immunity to radio frequency interference, zero radio frequency emissions, high density of sensing points, and durability in harsh environments.



Download the full white paper here




For more technical details please contact a member of the team at Photo-Sonics International Ltd.



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