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Proceedings Paper

Optical fiber grating sensor network based on highly reliable fibers and components for spacecraft health monitoring
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Paper Abstract

A fiber Bragg grating (FBG) sensor network has been developed for structural health monitoring on board of the X-38 spacecraft, the prototype of a crew return vehicle for the International Space Station. The FBG sensors will monitor mechanical and thermal load profiles of a frame component during launch and re-entry of the spacecraft. Four sensor pads are interrogated which contain three Bragg gratings each for 2D orthogonal strain and temperature measurements. The requirements for mechanical and thermal stability under the demanding conditions of vibration and shock loads, at temperatures within -40..+200 degree(s)C, have been fulfilled applying appropriate fiber passivation and Ormocer re-coating techniques, and by the development of a robust polychromator based signal processing unit.

Paper Details

Date Published: 6 August 2001
PDF: 8 pages
Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); doi: 10.1117/12.435518
Show Author Affiliations
Wolfgang Ecke, Institut fuer Physikalische Hochtechnologie eV (Germany)
Stephan Grimm, Institut fuer Physikalische Hochtechnologie eV (Germany)
Ines Latka, Institut fuer Physikalische Hochtechnologie eV (Germany)
Arnd Reutlinger, Kayser-Threde GmbH (Germany)
Reinhardt Willsch, Institut fuer Physikalische Hochtechnologie eV (Germany)


Published in SPIE Proceedings Vol. 4328:
Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Eric Udd; Daniele Inaudi, Editor(s)

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