Bragg Grating Sensor Demodulation Scheme using a Semiconductor Laser for measuring Slamming Forces of Marine Vehicle Models

Leif Bjerkan; Dag R. Hjelme; Kjetil Johannessen

doi:10.1364/OFS.1996.We316

Optical Fiber Sensors
(Optica Publishing Group, 1996),
paper We316
•https://doi.org/10.1364/OFS.1996.We316

Bragg Grating Sensor Demodulation Scheme using a Semiconductor Laser for measuring Slamming Forces of Marine Vehicle Models

Leif Bjerkan, Dag R. Hjelme, and Kjetil Johannessen

Optical Fiber Sensors 1996

Sapporo Japan
ISBN: 0-8194-3044-7

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L. Bjerkan, D. R. Hjelme, and K. Johannessen, "Bragg Grating Sensor Demodulation Scheme using a Semiconductor Laser for measuring Slamming Forces of Marine Vehicle Models," in Optical Fiber Sensors, (Optica Publishing Group, 1996), paper We316.

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Abstract

A demodulation technique for Bragg gratings is described. The method is based on tracking the wavelength shifts by current tuning of a DFB laser using a feedback loop. The sensor is mounted in a load cell designed for measurements on dynamic wave loads of down-scaled ship models.

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