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This proceeding at: 22nd International Conference on Optical Fibre Sensors (OFS-2012), took place in 2012  October, 14, in Chine.In this work a self-referencing intensity-based fiber-optic sensor using virtual instrumentation is presented. The use of virtual delay lines along with novel self-referencing techniques minimizing resolution and using a single frequency avoids all-optical or electrical-based delay lines approaches at reception. This solution preserves the self-referencing and performance characteristics of the proposed optical sensing topology, and leads to a more compact solution with higher flexibility for the multiple interrogation of remote sensing points. Results are presented for a displacement sensor demonstrating the concept feasibility.This work has been supported by Spanish CICyT project TEC2009-14718-C03-03 from the Spanish Ministry of Science,and by project FACTOTEM-II-C: S2009/ESP-1781 of Comunidad de Autónoma de Madrid.Publicad

Interrogation of remote intensity-based fiber-optic sensors deploying delay lines in the virtual domain