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Inline Quality Monitoring of Diesel Exhaust Fluid (AdBlue) by Using the 3w-Method

: Bernhardsgrütter, Ralf E.; Hepp, Christoph J.; Jägle, Martin; Pernau, Hans-Fridtjof; Schmitt, Katrin; Wöllenstein, Jürgen

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SMSI 2020 - Sensor and Measurement Science International : Proceedings, 22-25 June 2020, Nuremberg, Germany, SMSI 2020 is cancelled due to COVID-19
Wunstorf: AMA Service, 2020
ISBN: 978-3-9819376-2-6
ISBN: 978-3-9819376-3-3
ISBN: 3-9819376-3-5
Conference "Sensor and Measurement Science International" (SMSI) <2020, Nuremberg/cancelled>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IPM ()
Diesel Exhaust Fluid; AdBlue; 3-Omega Method; quality monitoring; Platinum Thin Film

Quality monitoring of diesel exhaust fluid is crucial for optimal selective catalytic reduction in diesel combustion processes. This article presents a platinum thin film sensor using the 3ω-method to characterize the diesel exhaust fluid. The results show that this sensor can determine the urea content with in 1 % by weight. An inline measurement is well applicable because the same structure can be used for both concentration and flow measurement.