P03 - Electrical Conductivity Sensor with Open-Source Hardware for the Microfluidic Determination of Reaction Parameters
- 16. Dresdner Sensor-Symposium 2022
2022-12-05 - 2022-12-07
- Sensoren für Verfahrenstechnik und (Bio-)Prozesse
- R. Dinter, L. Helwes, M. Pillath, N. Kockmann - TU Dortmund University, Dortmund/D
- 86 - 90
Due to the miniaturization of equipment in microprocess engineering and flow chemistry, the miniaturization of sensors and analytical devices for automated inline process control is also necessary. For example, electrolytic conductivity is suitable as a measured variable for the quantitative determination of ion concentration and reaction progress in microfluidics. In this work, an electrical conductivity measuring device was developed and verified using only open-source hardware for low-cost microfluidic determination of reaction parameters. The first section focuses on open-source electrical circuit design. Next, the newly developed electrical conductivity flow sensor with temperature compensation is verified and compared to a conventional reference batch conductometer. The detailed microfluidic application of the electrical conductivity flow sensor is not the main scope of this work and can be found in another study by Dinter et al..