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Europäisches Patentamt

Processing data from a distributed fibre-optic interferometric sensor system | Verarbeitung von Daten aus einem verteilten interferometrischen Glasfasersensorsystem | Traitement de données provenant d'un système de capteur interférométrique à fibre optique réparti

Patentnummer:EP2860498B1
IPC Hauptklasse:G01D0005353
Anmelder:
Erfinder:Waagaard, Ole Henrik (0)
Øysten Langsetsveg 9, 7025 Trondheim, NO
Anmeldung:09.10.13
Offenlegung:09.10.13
Patenterteilung:06.12.17

Abstract / Hauptanspruch
The invention relates to a method of processing data from a distributed fibre-optic interferometric sensor system for measuring a measurand, the system comprising multiple interferometric sensors. The method comprises interrogating two or more of the multiple interferometric sensors to record a raw measurement time series for each of the sensors. The method further comprises calculating a common reference time series as a measure of central tendency of the raw measurement time series from two or more reference sensors, the reference sensors being selected from the multiple interferometric sensors. Finally, the method comprises compensating at least one raw measurement time series from a measurement sensor selected from the multiple interferometric sensors with the common reference time series to produce a compensated measurement time series, the measurement sensor being configured to be sensitive to the measurand. The invention further relates to a distributed fibre-optic interferometric sensor system.

EP2860498B1


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