Single uniform FBG for simultaneous measurement of liquid level and temperature

Xuewen Shu, Kate Sugden, Ian Bennion

Research output: Contribution to journalArticle

Abstract

In this paper, we propose and demonstrate a novel scheme for simultaneous measurement of liquid level and temperature based on a simple uniform fiber Bragg grating (FBG) by monitoring both the short-wavelength-loss peaks and its Bragg resonance. The liquid level can be measured from the amplitude changes of the short-wavelength-loss peaks, while temperature can be measured from the wavelength shift of the Bragg resonance. Both theoretical simulation results and experimental results are presented. Such a scheme has some advantages including robustness, simplicity, flexibility in choosing sensitivity and simultaneous temperature measurement capability.
Original languageEnglish
Article number094003
Pages (from-to)094003
Number of pages1
JournalMeasurement Science and Technology
Volume21
Issue number9
DOIs
Publication statusPublished - 28 Jul 2010

Fingerprint

liquid levels
Fiber Grating
Fiber Bragg gratings
Bragg Grating
Bragg gratings
Liquid
Wavelength
fibers
Liquids
wavelengths
Temperature Measurement
Temperature measurement
Temperature
temperature
temperature measurement
Simplicity
flexibility
Flexibility
Monitoring
Robustness

Keywords

  • fiber optics sensors
  • fiber Bragg gratings
  • liquid-level sensor

Cite this

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Single uniform FBG for simultaneous measurement of liquid level and temperature. / Shu, Xuewen; Sugden, Kate; Bennion, Ian.

In: Measurement Science and Technology, Vol. 21, No. 9, 094003, 28.07.2010, p. 094003.

Research output: Contribution to journalArticle

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