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Proceedings Paper

Online fully automated measurement of Cr(VI) concentration in water by a fiber optic probe: measurement accuracy improvement and evaluation
Author(s): Giulio D'Emilia; Emanuela Natale
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Paper Abstract

In this paper a methodology is described to be implemented in a simple and low cost automatic measuring apparatus for on line measurement of Cr(VI) concentration in water, which is able to be controlled by a PC and to be inserted in an integrated environmental control multi-sensor network. Measuring section is a miniaturized fiber optic probe, whose working principle is light absorption of the complex Chromium (VI) - Diphenylcarbazide. Device design and set up guidelines of an automatic measuring device are described in order to get a reliable, effective and user friendly configuration and to reduce measurement uncertainty depending on interfering quantities of different type, fluid dynamic, optical, environmental, taking into account "in situ" measuring conditions.

Paper Details

Date Published: 1 September 2004
PDF: 6 pages
Proc. SPIE 5459, Optical Sensing, (1 September 2004); doi: 10.1117/12.546366
Show Author Affiliations
Giulio D'Emilia, Univ. degli Studi di L'Aquila (Italy)
Emanuela Natale, Univ. degli Studi di L'Aquila (Italy)


Published in SPIE Proceedings Vol. 5459:
Optical Sensing
Brian Culshaw; Anna Grazia Mignani; Rainer Riesenberg, Editor(s)

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