RETRACTED ARTICLE: Quasi-distributed fiber Bragg grating array sensor for furnace applications

Reddy, P. Narsimha; Prasad, R. L. N. Sai; Gupta, D. Sen; Shankar, M. Sai; Srimannarayana, K.; Reddy, P. Ravinder

doi:10.1007/s13320-012-0046-7

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“…In some industrial processes or a structural health monitoring system, a multi-point or quasi-distributed temperature measurement system is needed [15,16]. One possible technique for the multi-point temperature measurement is utilizing an optical time domain reflectometer (OTDR).…”

Section: Introductionmentioning

confidence: 99%

SMS fiber structure for temperature measurement using an OTDR

et al. 2013

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Abstract:A singlemode-multimode-singlemode (SMS) fiber structure for temperature measurement using an optical time domain reflectometer (OTDR)-based interrogation system is proposed. A temperature measurement range of 40 ℃-195 ℃ with a resolution of 0.12 ℃ and a linearity of 0.992 could be achieved for the multimode fiber (MMF) graded index with a length of 60 mm. It was also demonstrated that two-point temperature measurement with two SMS fiber structures as temperature sensors could be made. The proposed temperature measurement system offered a high resolution and also benefited from a simple configuration with a capability of multi-point temperature measurement.

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Section: Introductionmentioning

confidence: 99%