Abstract
The impact force of an atmospheric pressure non-equilibrium plasma jet on different substrates is measured using an electronic balance meter with a resolution of 0.98 μN. The effects of the substrate material, amplitude of the applied voltage amplitude, gas flow rate, and distance between the nozzle and the substrate on the impact force are investigated. It is found that the impact force induced by the charged particles is in the range of several μN to more than one hundred μN. The thrust increases lineally with the increase in the applied voltage and decreases with the increase in the distance between the nozzle and the substrate. On the other hand, the gas flow rate and the substrate of the material have more complicated effects on the thrust. Finally, it is found that the electric field of the plasma plume, when it reaches the substrate, can be estimated from the measured impact force, which is in good agreement with the simulation results.
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