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Proceedings Paper

Determination of the K-matrix for the multiparameter fiber grating sensor in AD072 fibercore fiber
Author(s): Drew V. Nelson; Alberto Makino; Craig M. Lawrence; John M. Seim; Whitten L. Schulz; Eric Udd
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Paper Abstract

A methodology is described for determining a relation (K- matrix) between wavelength shifts and (1) axial strain, (2) two transverse strains and (3) temperature change experienced by a multi-parameter Bragg grating sensor. The sensor is formed by writing gratings at two wavelengths in polarization maintaining fiber. The methodology is based on separate experimental calibrations of sensor response to transverse loading (diametral compression), axial loading and temperature changes. Strains produced in the core by the loadings or temperature changes used in the calibrations are determined by finite element analyses.

Paper Details

Date Published: 23 September 1998
PDF: 7 pages
Proc. SPIE 3489, Fourth Pacific Northwest Fiber Optic Sensor Workshop, (23 September 1998); doi: 10.1117/12.323418
Show Author Affiliations
Drew V. Nelson, Stanford Univ. (United States)
Alberto Makino, Stanford Univ. (United States)
Craig M. Lawrence, Stanford Univ. (United States)
John M. Seim, Blue Road Research (United States)
Whitten L. Schulz, Blue Road Research (United States)
Eric Udd, Blue Road Research (United States)

Published in SPIE Proceedings Vol. 3489:
Fourth Pacific Northwest Fiber Optic Sensor Workshop
Chuck C. Jung; Eric Udd, Editor(s)

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