Share Email Print
cover

Proceedings Paper

Micro bending beam based optical fiber grating sensors for physical and chemical measurands
Author(s): Ines Latka; Wolfgang Ecke; Bernd Hoefer; Thomas Frangen; Reinhardt Willsch; Arnd Reutlinger
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We propse the application of sensors based on the intrinsic bend sensitivity of Bragg gratings inscribed in D-shaped fibers. The first example is a viscosity sensor, consisting of the D-shaped fiber with a sphere attached to the tip of the fiber. The force exerted on the sphere by the laminar flow of a fluid with unknown viscosity bends the fiber, and with this shifts the Bragg wavelength of the inscribed Bragg grating. The other one is a hydrogen senosr, which uses the influence of hydrogen on a palladium foil attached to the Bragg grating. The palladium foil, which is frictionally connected to the flat surface of the D-shaped fiber, is stretched under the influence of hydrogen and with this stretches/bends the fiber.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623446
Show Author Affiliations
Ines Latka, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Wolfgang Ecke, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Bernd Hoefer, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Thomas Frangen, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Reinhardt Willsch, Institut fuer Physikalische Hochtechnologie e.V. (Germany)
Arnd Reutlinger, Kayser-Threde GmbH (Germany)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

© SPIE. Terms of Use
Back to Top