Modelling and Verification of Ion Currents Under Various Air Pressure
The main purpose of this paper is to evaluate the results of multiple simulation methods and verify them with results of experimental measurement. Therefore, this paper presents three different models, a partial differential equation system, an analytical calculation and a model based on plasma physics. With these models, it is possible to calculate ion currents as a function of voltage and air pressure. The simulated data are compared with each other and evaluated with the focus of accuracy. Furthermore, the simulation results are verified by experimental data. The coaxial experimental setup with the possibility to variate voltage and air pressure is presented. This setup is used to create the measurement data for the model verification.
KeywordsIon current Atmospheric modeling Air pressure Current measurement
Many thanks to student Philipp Huber for his support by the implementation of the models.
The authors would like to thank the federal ministry for economic affairs and energy of Germany for the support of this work as a part of the E2HGÜ project (FKZ 03ET7514).
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