Detail publikace

Accuracy of scanning interrogation of FBG sensors

URBAN, F. HELÁN, R. URBAN, F.

Originální název

Accuracy of scanning interrogation of FBG sensors

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Progress in the fibre optic technology spurred the development of optical fibre-based sensors. A successful fibre optics-based element for sensorial systems is fibre Bragg grating. It allows to read the measured value by the spectral shift of light, which is the variable with a good potential for accurate measurement. Various types of the interrogation of the light spectrum reflected from the measuring grating are discussed in this article and the work concentrates on the spectrum scanning that gives the good chances to diminish measuring errors by a proper choice of parameters. The focal point is the accuracy of establishing the correct value of the maximum reflectance wavelength. The significance of the noise in the photoelectric scanning signal for the measuring accuracy is analysed and the crucial factor is found in the minimizing the reflectance spectral width of the measuring grating and using the spectrum of the scanning light with the same or smaller spectral width. An important aspect is the relation of the maximal reflectance and the wavelength width of the measuring grating reflectance spectrum. The article also shows the potentiality of the apodized gratings for improving the scanning interrogation. A specific index apodization profile was analysed and its advantages are discussed.

Klíčová slova

fibre Bragg grating; interrogation; reflectance spectrum linewidth; apodized grating

Autoři

URBAN, F.; HELÁN, R.; URBAN, F.

Vydáno

1. 4. 2023

Nakladatel

Sciendo

Místo

BRATISLAVA

ISSN

1335-3632

Periodikum

Journal of Electrical Engineering

Ročník

74

Číslo

2

Stát

Slovenská republika

Strany od

75

Strany do

84

Strany počet

10

URL

https://sciendo.com/article/10.2478/jee-2023-0010

Plný text v Digitální knihovně

http://hdl.handle.net/11012/213635

BibTex

@article{BUT183812,
  author="František {Urban} and Radek {Helán} and František {Urban}",
  title="Accuracy of scanning interrogation of FBG sensors",
  journal="Journal of Electrical Engineering
",
  year="2023",
  volume="74",
  number="2",
  pages="75--84",
  doi="10.2478/jee-2023-0010",
  issn="1335-3632",
  url="https://sciendo.com/article/10.2478/jee-2023-0010"
}