High-sensitivity optical fiber probe for simultaneous measurement of chloride ions and temperature.
Appl Opt
; 62(36): 9430-9436, 2023 Dec 20.
Article
em En
| MEDLINE
| ID: mdl-38108766
ABSTRACT
A fiber optic probe for the simultaneous measurement of chloride ions and temperature is presented. The Ag/alginate composite film is used as the reflective surface of the Fabry-Perot interferometer (FPI) and is a sensitive film for the adsorption of chloride ions. The experimental results show that the Fabry-Perot (FP) response sensitivity is approximately 1.4689 nm/µM as the chloride ion concentration changes from 1 to 9 µM, but the fiber Bragg grating (FBG) is insensitive to chloride ions. When the temperature is changed from 35°C to 80°C, the response sensitivities of the FP and the FBG are about 0.7 and 0.01115 nm/°C, respectively.
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MEDLINE
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En
Ano de publicação:
2023
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Article