DocumentCode
3120210
Title
Capacitive sensor for methanol concentration measurement in direct methanol fuel cells (DMFC)
Author
Doerner, S. ; Schultz, T. ; Schneider, T. ; Sundmacher, K. ; Hauptmann, P.
Author_Institution
Inst. of Micro & Sensor Syst., Otto-von-Guericke Univ. of Magdeburg, Germany
fYear
2004
fDate
24-27 Oct. 2004
Firstpage
639
Abstract
A compact in-situ measurement of methanol concentration in the liquid feed of direct methanol fuel cells (DMFC) by a capacitive sensor is presented. The measurement approach uses impedance spectrum analyzer electronics and is suitable for use under process conditions. Calibration of the measurement system for the required temperature range is done with selected reference liquids.
Keywords
capacitive sensors; chemical variables measurement; electric impedance measurement; fuel cells; process monitoring; spectral analysers; calibration; capacitive sensor; direct methanol fuel cells; impedance analyzer; impedance spectrum analyzer electronics; liquid feed; methanol concentration measurement; Calibration; Capacitive sensors; Dielectric measurements; Electrodes; Feeds; Fuel cells; Impedance measurement; Methanol; Permittivity measurement; Temperature sensors;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors, 2004. Proceedings of IEEE
Print_ISBN
0-7803-8692-2
Type
conf
DOI
10.1109/ICSENS.2004.1426247
Filename
1426247
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