Translator Disclaimer
Paper
10 March 1994 Sol-gel coating-based fiber O2/DO sensors
Author Affiliations +
Proceedings Volume 2068, Chemical, Biochemical, and Environmental Fiber Sensors V; (1994) https://doi.org/10.1117/12.170670
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States
Abstract
An intrinsic fiber optic environmental sensor has been developed for on-line monitoring of oxygen gas and dissolved oxygen (DO). In this O2/DO sensor, a highly stable compound [Tris-(4,7-Diphenyl-1, 10-phenanthroline) Ruthenium (II) complex] is synthesized and selected as a chemical indicator for oxygen. A hybrid matrix is designed by a sol-gel process and used as a stable substrate for the immobilization of Ru compound. The microporous nature of the nondensified sol-gel coating, in which the photochemical dye is immobilized, provides a unique local structure that is environmentally stable and immune to photochemical bleaching and chemical leaching. The doped hybrid material is then coated on a porous optical fiber substrate used as the sensing component. The oxygen penetrates into the interconnective porous core and interacts with the immobilized Ru compound in which in-line dynamic luminescence quenching takes place. The use of Ru(ph2phen)3[2+] as a highly stable, reagent sensing indicator and also the use of the sol-gel coating technique for the immobilization and incorporation of Ru compound to porous core optical fibers have resulted in the development of an intrinsic O2/DO sensor with high sensitivity, reproducibility, and long-term stability.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mahmoud R. Shahriari, Jack Y. Ding, J. Tong, and George H. Sigel Jr. "Sol-gel coating-based fiber O2/DO sensors", Proc. SPIE 2068, Chemical, Biochemical, and Environmental Fiber Sensors V, (10 March 1994); https://doi.org/10.1117/12.170670
PROCEEDINGS
17 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Distributed fiber optic fuel leak detection system
Proceedings of SPIE (May 31 2013)
Fast response time fiber optical pH and oxygen sensors
Proceedings of SPIE (February 21 2020)
Sol gel-based fiber optic pH sensor
Proceedings of SPIE (June 16 1997)
Fiber optic oxygen sensors based on the sol gel coating...
Proceedings of SPIE (December 10 1996)

Back to Top