Schenato L., Bossi G., Marcato G., Dwivedi S., Janse-Van Vuuren D., Ahlstedt M., Pasuto A., 2015, Feasibility of crack monitoring in a road tunnel based on a low cost plastic optical fiber sensor, 24th International Conference on Optical Fibre Sensors, Curitiba, Brazil, 28 Sept - 2 Oct 2015,
URL: http://www.cnr.it/prodotto/i/342125

In this work, a low cost optical fiber sensing system for cracks growth monitoring in the concrete lining of a road tunnel is presented. A plastic optical fiber (POF), with large dynamic strain range, is used for sensing by means of phase measurement of a RF modulated optical signal. Preliminary results suggest that the system represents a viable solution to the aim of crack monitoring.

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