Sensors 2010, 10(4), 3815-3823; doi:10.3390/s100403815
Article

Optical Sensor for Characterizing the Phase Transition in Salted Solutions

1,* email, 2email, 1,2, 2email, 1 and 1
Received: 11 February 2010; in revised form: 27 February 2010 / Accepted: 17 March 2010 / Published: 14 April 2010
(This article belongs to the Special Issue Laser Spectroscopy and Sensing)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: We propose a new optical sensor to characterize the solid-liquid phase transition in salted solutions. The probe mainly consists of a Raman spectrometer that extracts the vibrational properties from the light scattered by the salty medium. The spectrum of the O-H stretching band was shown to be strongly affected by the introduction of NaCl and the temperature change as well. A parameter SD defined as the ratio of the integrated intensities of two parts of this band allows to study the temperature and concentration dependences of the phase transition. Then, an easy and efficient signal processing and the exploitation of a modified Boltzmann equation give information on the phase transition. Validations were done on solutions with varying concentration of NaCl.
Keywords: Raman sensor; phase transition; salted solution
PDF Full-text Download PDF Full-Text [1779 KB, uploaded 21 June 2014 02:59 CEST]

Export to BibTeX |
EndNote


MDPI and ACS Style

Claverie, R.; Fontana, M.D.; Duričković, I.; Bourson, P.; Marchetti, M.; Chassot, J.-M. Optical Sensor for Characterizing the Phase Transition in Salted Solutions. Sensors 2010, 10, 3815-3823.

AMA Style

Claverie R, Fontana MD, Duričković I, Bourson P, Marchetti M, Chassot J-M. Optical Sensor for Characterizing the Phase Transition in Salted Solutions. Sensors. 2010; 10(4):3815-3823.

Chicago/Turabian Style

Claverie, Rémy; Fontana, Marc D.; Duričković, Ivana; Bourson, Patrice; Marchetti, Mario; Chassot, Jean-Marie. 2010. "Optical Sensor for Characterizing the Phase Transition in Salted Solutions." Sensors 10, no. 4: 3815-3823.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert