Optical fiber sensor for oxygen detection working on an absorption basis
- 1 April 1992
- journal article
- research article
- Published by Taylor & Francis in Fiber and Integrated Optics
- Vol. 11 (2) , 123-133
- https://doi.org/10.1080/01468039208202210
Abstract
Painstaking spectrophotometric investigation was carried out on organo-metallic compounds to identify the most suitable compound for the detection of oxygen. A bis (histidinato) cobalt(II) solution was chosen, characterized by an absorption change at λ-408 nm as a function of the molecular oxygen concentration in the surrounding environment. An optical fiber system was developed that makes use of a halogen lamp as the source and an appropriate electronic circuit as a detection system. The optrode is a very small hollow fiber membrane filled with the solution and coupled with optical fibers.Keywords
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