Share Email Print

Proceedings Paper

Fibre optic monitoring system for the determination of segment joint movements inside a hydro power dam
Author(s): Helmut Woschitz; Ferdinand Klug; Werner Lienhart
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In recent years hydro power stations were rebuilt to more efficient pumped storage power stations. This changed the loading conditions and new monitoring concepts are required. We developed a FBG based automatic monitoring system for the simultaneous measurement of concrete segment joints. With a fibre optic testing facility sensor nonlinearity and hysteresis effects were investigated. Using selected sensors the requested accuracy of 0.02 mm for deformations up to 3 mm can be achieved. Several sensors were installed in a hydro power dam. First results show an increased number of load cycles and smaller movements for the dam in pumping mode.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91579N (2 June 2014); doi: 10.1117/12.2059682
Show Author Affiliations
Helmut Woschitz, Technische Univ. Graz (Austria)
Ferdinand Klug, Technische Univ. Graz (Austria)
Werner Lienhart, Technische Univ. Graz (Austria)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

© SPIE. Terms of Use
Back to Top