About: An experimental investigation comparing the properties of plasma jets in dielectric barrier discharge (DBD) configuration using a powered electrode with and without a dielectric barrier is reported in this work. Measurements of plasma parameters were performed for both configurations using argon and helium as working gases. As a result, differences were found in discharge power ($P_{plasma}$), rotational and vibrational temperatures ($T_r$ and $T_v$, respectively) when switching from one configuration to the other. It has been observed that despite the remarkable increase in $P_{plasma}$ when changing from the double barrier configuration to the single barrier one, the values obtained for $T_r$ and $T_v$ also increased, but not in the same proportion as the increase in $P_{plasma}$, which suggests a non-linear dependency between temperature and discharge power s in the plasma jet. As a general conclusion, if higher power is really required for some application it is better to use the non-covered tip configuration.   Goto Sponge  NotDistinct  Permalink

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  • An experimental investigation comparing the properties of plasma jets in dielectric barrier discharge (DBD) configuration using a powered electrode with and without a dielectric barrier is reported in this work. Measurements of plasma parameters were performed for both configurations using argon and helium as working gases. As a result, differences were found in discharge power ($P_{plasma}$), rotational and vibrational temperatures ($T_r$ and $T_v$, respectively) when switching from one configuration to the other. It has been observed that despite the remarkable increase in $P_{plasma}$ when changing from the double barrier configuration to the single barrier one, the values obtained for $T_r$ and $T_v$ also increased, but not in the same proportion as the increase in $P_{plasma}$, which suggests a non-linear dependency between temperature and discharge power s in the plasma jet. As a general conclusion, if higher power is really required for some application it is better to use the non-covered tip configuration.
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  • Gases
  • Concepts in physics
  • Plasma physics
  • Phases of matter
  • Quantum phases
  • Astrophysics
  • Electrical conductors
  • Subfields of physics
  • E-number additives
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