Embedded and surface-mounted fiber optic sensors for civil structural monitoring

Daniele Inaudi; Nicoletta Casanova; Pascal Kronenberg; Silvio Marazzi; Samuel Vurpillot

doi:10.1117/12.274668

23 May 1997 Embedded and surface-mounted fiber optic sensors for civil structural monitoring

Daniele Inaudi, Nicoletta Casanova, Pascal Kronenberg, Silvio Marazzi, Samuel Vurpillot

Proceedings Volume 3044, Smart Structures and Materials 1997: Industrial and Commercial Applications of Smart Structures Technologies; (1997) https://doi.org/10.1117/12.274668
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

Civil structural monitoring by optical fiber sensors, require the development of reliable sensors that can be embedded or surface mounted in concrete, mortars, steel, timber and other construction materials as well as in rocks, soils and road pavements. These sensors should be rapid and simple to install in order to avoid any interference with the building site schedule and not to require specialized operators to accomplish the task. The sensors have to be rugged enough to withstand the harsh conditions typically found in civil engineering including, dust, moisture, shocks, EM disturbances and unskilled workman. It is also desirable that the instrumentation survives for tens of years in order to allow a constant monitoring of the structure aging. This contribution presents the results of a four-year effort to develop, test and industrially produce a palette of sensors responding to the above requirements and adapted to different applications and host materials. These sensors include a small version (length up to 2 m) adapted for embedding in mortars, grout and glues, an intermediate version of length between 20 cm and 6 m adapted to direct concrete embedding or surface installation and a long version adapted to measure large deformations (up to 2%) over length up to 30 m and especially adapted for geostructures monitoring.

Citation Download Citation

Daniele Inaudi, Nicoletta Casanova, Pascal Kronenberg, Silvio Marazzi, and Samuel Vurpillot "Embedded and surface-mounted fiber optic sensors for civil structural monitoring", Proc. SPIE 3044, Smart Structures and Materials 1997: Industrial and Commercial Applications of Smart Structures Technologies, (23 May 1997); https://doi.org/10.1117/12.274668

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