ANALYSIS OF THE ACCURACY OF FIBRE-OPTIC STRAIN GAUGES

Authors

  • Dita Jiroutová Department of Experimental Methods, Klokner Institute, Czech Technical University in Prague, Šolínova 7, 166 08 Prague 6
  • Miroslav Vokáč Department of Experimental Methods, Klokner Institute, Czech Technical University in Prague, Šolínova 7, 166 08 Prague 6

DOI:

https://doi.org/10.14311/AP.2013.53.0872

Abstract

In recent years, the field of structure monitoring has been making increasing use of systems based on fiber-optic technologies. Fiber-optic technology offers many advantages, including higher quality measurements, greater reliability, easier installation and maintenance, insensitivity to the environment (mainly to the electromagnetic field), corrosion resistance, safety in explosive and flammable environments, the possibility of long-term monitoring and lower cost per lifetime. We have used SOFO fibre-optic strain gauges to perform measurements to check the overall relative deformation of a real reinforced concrete structure. Long-term monitoring of the structure revealed that the measurement readings obtained from these fibre-optic strain gauges differed from each other. Greater attention was therefore paid to the calibration of the fibre-optic strain gauges, and to determining their measurement accuracy. The experimental results show that it is necessary to calibrate SOFO strain gauges before they are used, and to determine their calibration constant.

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Published

2013-12-31

Issue

Vol. 53 No. 6 (2013)

Section

Articles

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How to Cite

Jiroutová, D., & Vokáč, M. (2013). ANALYSIS OF THE ACCURACY OF FIBRE-OPTIC STRAIN GAUGES. Acta Polytechnica, 53(6), 872-877. https://doi.org/10.14311/AP.2013.53.0872