Calibration and uncertainty of a fibre optic measurement system for Fresnel reflectometer sensors

Jonathan Oelhafen, Tobias Mayr, Konstantinos Moutzouris, Johannes Roths, Klaus Drechsler

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A four-channel fibre optic measurement system for fibre Bragg grating (FBG) sensors was used to measure the refractive index of fluids with Fresnel reflectometer sensors prepared from SMF28e singlemode fibres. The fibre optic measurement system was calibrated with five high-purity organic fluid samples in the refractive index range between 1.3 and 1.6. The light source had a wavelength of 1550 nm and the fluid samples were held at 24 °C. In total, 400 refractive index measurements were performed. The calibration of the fibre optic measurement system was performed with a linear correction function. The combined uncertainty of the refractive index measurements with the fibre optic measurement system was found to be in the order of 10-4.

Original languageEnglish
Title of host publication25th International Conference on Optical Fiber Sensors
EditorsLibo Yuan, Youngjoo Chung, Wei Jin, Byoungho Lee, John Canning, Kentaro Nakamura
PublisherSPIE
ISBN (Electronic)9781510610910
DOIs
StatePublished - 2017
Event25th International Conference on Optical Fiber Sensors, OFS 2017 - Jeju, Korea, Republic of
Duration: 24 Apr 201728 Apr 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10323
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference25th International Conference on Optical Fiber Sensors, OFS 2017
Country/TerritoryKorea, Republic of
CityJeju
Period24/04/1728/04/17

Keywords

  • Calibration
  • Combined uncertainty
  • Fiber optic sensor
  • Fresnel reflectometer
  • Organic fluid
  • Refractive index
  • Refractometer
  • Singlemode

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