Εξειδίκευση τύπου :	Ανακοίνωση σε συνέδριο
Τίτλος:	Assessment of fiber optic sensors for aging monitoring of industrial liquid coolants
Δημιουργός/Συγγραφέας:	[EL] Ριζιώτης, Χρήστος Δ.[EN] Riziotis, Christos El Sachat A. Markos C. Velanas P. Meristoudi A. Papadopoulos A.
Επιμελητής έκδοσης:	Jiang S. Digonnet M.J.F.
Χορηγός :	The Society of Photo-Optical Instrumentation Engineers (SPIE)
Εκδότης:	SPIE
Ημερομηνία:	2015
Γλώσσα:	Αγγλικά
ISBN:	9781628414493
ISSN:	0277-786X
DOI:	10.1117/12.2079988
Περίληψη:	Lately the demand for in situ and real time monitoring of industrial assets and processes has been dramatically increased. Although numerous sensing techniques have been proposed, only a small fraction can operate efficiently under harsh industrial environments. In this work the operational properties of a proposed photonic based chemical sensing scheme, capable to monitor the ageing process and the quality characteristics of coolants and lubricants in industrial heavy machinery for metal finishing processes is presented. The full spectroscopic characterization of different coolant liquids revealed that the ageing process is connected closely to the acidity/ pH value of coolants, despite the fact that the ageing process is quite complicated, affected by a number of environmental parameters such as the temperature, humidity and development of hazardous biological content as for example fungi. Efficient and low cost optical fiber sensors based on pH sensitive thin overlayers, are proposed and employed for the ageing monitoring. Active sol-gel based materials produced with various pH indicators like cresol red, bromophenol blue and chorophenol red in tetraethylorthosilicate (TEOS), were used for the production of those thin film sensitive layers deposited on polymer's and silica's large core and highly multimoded optical fibers. The optical characteristics, sensing performance and environmental robustness of those optical sensors are presented, extracting useful conclusions towards their use in industrial applications.
Όνομα εκδήλωσης:	Optical Components and Materials XII
Ημ/νία έναρξης εκδήλωσης :	2015-02-09
Ημ/νία λήξης εκδήλωσης :	2015-02-11
Τίτλος πηγής δημοσίευσης:	Proceedings of SPIE - The International Society for Optical Engineering
Τόμος/Κεφάλαιο:	9359
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Φασματοσκοπία[EN] Spectroscopy
Λέξεις-Κλειδιά:	Ageing monitoring industrial liquids photonic sensors sol-gel
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2015 SPIE.
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο