Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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 (Autor:in) / Soriano Amat, Miguel (Autor:in) / Fidalgo Martins, Hugo (Autor:in) / Barrera , David (Autor:in) / Martín López, Sonia (Autor:in) / González Herráez, Miguel (Autor:in) / Fernández Ruiz, María Del Rosario (Autor:in) / Universidad de Alcalá. Departamento de Electrónica
10.08.2023
4336
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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