Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Performance, Flexibility and Usability Enhancement of the Fiber Optic Vibration Sensor

Version 1 : Received: 29 May 2021 / Approved: 31 May 2021 / Online: 31 May 2021 (11:20:20 CEST)

How to cite: Novotný, V.; Slavíček, K.; Sysel, P.; Prokeš, A.; Hanák, P. Performance, Flexibility and Usability Enhancement of the Fiber Optic Vibration Sensor. Preprints 2021, 2021050744 (doi: 10.20944/preprints202105.0744.v1). Novotný, V.; Slavíček, K.; Sysel, P.; Prokeš, A.; Hanák, P. Performance, Flexibility and Usability Enhancement of the Fiber Optic Vibration Sensor. Preprints 2021, 2021050744 (doi: 10.20944/preprints202105.0744.v1).

Abstract

Distributed fiber optic vibration sensors based on Φ-OTDR using Rayleigh backscattering of highly coherent light source pulses are very popular type in the area of sensors due to many attractive features, mainly due to its distributed manner of sensing, i.e. they can operate as thousands of local sensors simultaneously. The paper summarizes and describes several important modifications of the original sensor scheme to enhance its key performance parameters and to extend its application potential. A multi-fiber sensor form was proposed. Single- and two-fiber sensors were designed, constructed and tested both in the laboratory and in a real environment. Variants of two-fiber sensor utilizing optical switches for the sensor flexibility enhancement are proposed and their applications are described.

Subject Areas

Distributed fiber optic vibration sensors ; Φ-OTDR; Rayleigh backscattering; multi-fiber sensor

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