Cold non-equilibrium atmospheric-pressure plasmas can be produced by high voltage discharges in the atmospheres of various working gases.
Likewise, incorporation of the high voltage generator and the discharge electrode into a single module should reduce dielectric losses in the cables.
The high voltage side of this transformer acts as an electrode generating electric discharges in the air or other working gases producing atmospheric-pressure plasmas.
Piezoelectric transformers of the Rosen type, which can be made of lead zirconate titanate, convert the electric energy in the form of low voltage AC into mechanical oscillations.
Temperature of the neutral gas within the plasma volume remains lower than 50 C. At the same time, the electrons and the ions reach energies of 1 – 10 eV.
Properties of the piezoelectric direct discharge plasmas enable a large spectrum of applications in medical technology, microbiology and clinical research.
[5] Typical industrial applications include ultra-fine cleaning and plasma activation of metal, ceramic, glass and plastic surfaces.