A5.2 Inline Quality Monitoring of Diesel Exhaust Fluid (AdBlue) by Using the 3w-Method
- SMSI 2020
(did not take place because of Covid-19 virus pandemic)
- SMSI 2020 - Sensors and Instrumentation
- A5 Sensor Materials and Technologies
- R. Bernhardsgrütter, C. Hepp - Innovative Sensor Technology IST AG, Ebnat-Kappel (Switzerland), M. Jägle, H. Pernau, K. Schmitt, J. Wöllenstein - University of Freiburg, Freiburg (Germany)
- 79 - 80
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 char-acterize 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.