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Proceedings Paper

Automatic sensor system for groundwater monitoring network
Author(s): Axel Ehlert; Stephanus Buettgenbach
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Paper Abstract

An automatic sensor system with chemical sensors for water analysis is presented. It is part of a groundwater monitoring network which allows frequent measurements at low cost. The sensor system has an active fluidic system that combines micromachined and non-micromachined components to take water samples automatically. Three different types of sensors are included in the system, two ion selective sensors and an optofluidic microsystem that works as a microphotometer. It is shown that photometric analysis of different substances in water can be carried out in the microfluidic system using commercially available photometric reagents. Finally, an integrated microsystem for dosing and mixing of sample and reagent and photometric measurements on one chip is presented.

Paper Details

Date Published: 18 November 1999
PDF: 9 pages
Proc. SPIE 3857, Chemical Microsensors and Applications II, (18 November 1999); doi: 10.1117/12.370295
Show Author Affiliations
Axel Ehlert, Technische Univ. Braunschweig (Germany)
Stephanus Buettgenbach, Technische Univ. Braunschweig (Germany)


Published in SPIE Proceedings Vol. 3857:
Chemical Microsensors and Applications II
Stephanus Buettgenbach, Editor(s)

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