A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic curvature sensing using time expanded Φ-OTDR
Shape sensing can be accomplished using optical fiber sensors through different interrogation principles such as fiber Bragg gratings, optical frequency-domain reflectometry (OFDR), or optical time-domain reflectometry (OTDR). These techniques are either not entirely distributed, have poor performance in dynamic sensing, or are only valid for few-meter-long fibers. Here, we present a system able to perform distributed curvature sensing with a range of 125 m, 10-cm resolution, and a sampling rate of 50 Hz. This is done by interrogating three cores of a multi-core fiber (MCF) with the novel time-expanded phase-sensitive (TE-?)OTDR technique. This system fills a performance gap in fiber shape sensors, opening the door to applications in civil engineering, medicine, or seismology ; European Commission ; Ministerio de Ciencia e Innovación ; Agencia Estatal de Investigación ; Comunidad de Madrid
Dynamic curvature sensing using time expanded Φ-OTDR
Shape sensing can be accomplished using optical fiber sensors through different interrogation principles such as fiber Bragg gratings, optical frequency-domain reflectometry (OFDR), or optical time-domain reflectometry (OTDR). These techniques are either not entirely distributed, have poor performance in dynamic sensing, or are only valid for few-meter-long fibers. Here, we present a system able to perform distributed curvature sensing with a range of 125 m, 10-cm resolution, and a sampling rate of 50 Hz. This is done by interrogating three cores of a multi-core fiber (MCF) with the novel time-expanded phase-sensitive (TE-?)OTDR technique. This system fills a performance gap in fiber shape sensors, opening the door to applications in civil engineering, medicine, or seismology ; European Commission ; Ministerio de Ciencia e Innovación ; Agencia Estatal de Investigación ; Comunidad de Madrid
Dynamic curvature sensing using time expanded Φ-OTDR
Escobar Vera, Camilo José (author) / Soriano Amat, Miguel (author) / Fidalgo Martins, Hugo (author) / Barrera , David (author) / Martín López, Sonia (author) / González Herráez, Miguel (author) / Fernández Ruiz, María Del Rosario (author) / Universidad de Alcalá. Departamento de Electrónica
2023-08-10
4336
Article (Journal)
Electronic Resource
English
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