@misc{Pandey_N.K._Fibre_2007, author={Pandey, N.K. and Yadav, B.C.}, contributor={Gaj, Miron. Redakcja}, year={2007}, rights={Wszystkie prawa zastrzeżone (Copyright)}, publisher={Oficyna Wydawnicza Politechniki Wrocławskiej}, description={Optica Applicata, Vol. 37, 2007, nr 1-2, s. 57-63}, language={eng}, abstract={Pressure induced microbends have been created in a 50 mm graded index multimode optical fibre with spatial periodicity L = 4.5 mm, embedded in the sample of araldite. If high pressure is applied directly to optical fibre having microbends, it may break, and if pressure is applied to embedded fibre in a solid structure without microbends, the sensitivity is lower. In this paper, a combination of the embedded sensor and microbend sensor is presented. It has the advantage of sensing high pressure on a structure with the sensitivity of a microbend sensor without breaking the optical fibre. It measures pressure up to 1.6 MPa with reproducibility within ± 5% of the measurand. The average sensitivity of the sensor is 5.3/ MPa on an arbitrary scale.}, type={artykuł}, title={Fibre optic pressure sensor and monitoring of structural defects}, keywords={optyka, fibre, pressure sensor, microbend, structural defects}, }