- Tytuł:
- Fibre-optic sensor for simultaneous measurement of thickness and refractive index of liquid layers
- Autorzy:
-
Marzejon, Marcin
Karpienko, Katarzyna
Mazikowski, Adam
Jędrzejewska-Szczerska, Małgorzata - Powiązania:
- https://bibliotekanauki.pl/articles/220419.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
fibre-optic
sensors
interferometry
Fabry-Pérot interferometer - Opis:
- In this paper, we present a fibre-optic sensor for simultaneous measurement of refractive index and thickness of liquid layers. We designed an experimental low-coherence setup with two broadband light sources and an extrinsic fibre-optic Fabry-Pérot interferometer acting as the sensing head. We examined how the refractive index of a liquid film and its thickness affect spectrum at the output of a fibre-optic interferometer. We performed a series of experiments using two light sources and only one sensing head. The spectra were collected in ranges of 1220-1340 nm and 1500-1640 nm. The obtained results show that using two spectra recorded simultaneously for two wavelength ranges enables to determine thickness in a range of 50-500 μm, and refractive index of a liquid film in a range of 1.00-1.41 RIU using only one sensing head.
- Źródło:
-
Metrology and Measurement Systems; 2019, 26, 3; 561-568
0860-8229 - Pojawia się w:
- Metrology and Measurement Systems
- Dostawca treści:
- Biblioteka Nauki
Artykuł