VolverTechnique for embedding fiber optics in metallic structures for Smart material applications
8th European Workshop on Structural Health Monitoring (EWSHM 2016) 21(8) : (2016)
Resumen
In this paper a technique to embed fiber optic sensors (FOS) to metallic structures is presented and validated opening possibilities to smart metallic structures. The technique is based in widely adopted and low cost TIG welding. A detailed procedure for scaling up is presented in which, Ni and Cu coated fiber optics at first, and Ni coated FBG sensors at last are embedded in Tin coated forged steel ST-52 with Tin alloy wire. Tensile and temperature tests show stable measurements with 1.3pm/µm and 24pm/ºC sensibility in the embedded sensor in a metallic specimen for strain ranges from 0 to 550µm and temperature ranges from 50 to 200ºC.
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