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Proceedings Paper

Bragg grating extensometer rods (BGX) for geotechnical strain measurements
Author(s): Cornelia Schmidt-Hattenberger; Gunter Borm
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Paper Abstract

We report on a new type of optical extensometer for strain measurement in geotechnical and civil engineering applications. The system key elements are Fiber Bragg Gratings (FBG) embedded in glassfiber reinforced polymer (GRP) rockbolts. In order to monitor rock deformations in tunnels, a prototype sensor rockbolt was designed. First measurements have been made to demonstrate the characteristics of the sensor system.

Paper Details

Date Published: 18 June 1998
PDF: 4 pages
Proc. SPIE 3483, European Workshop on Optical Fibre Sensors, (18 June 1998); doi: 10.1117/12.309676
Show Author Affiliations
Cornelia Schmidt-Hattenberger, GeoForschungsZentrum Potsdam (Germany)
Gunter Borm, GeoForschungsZentrum Potsdam (Germany)

Published in SPIE Proceedings Vol. 3483:
European Workshop on Optical Fibre Sensors
Brian Culshaw; Julian D. C. Jones, Editor(s)

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