DBD Plasma Discharges in Air at Atmospheric Pressure: Photographs and Electrical Waveforms

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<h2>Description</h2>
This dataset contains paired <strong>photographs</strong> and <strong>oscilloscope measurements</strong> of
<abbr title="Dielectric Barrier Discharge">DBD</abbr> plasmas generated in air at atmospheric pressure.
The measurements span a wide parameter grid of <strong>excitation frequencies</strong>, transformer drive levels
(<span title="transformer drive level">“voltage [%]”</span>), <strong>camera exposure times</strong>,
and <strong>discharge gap widths</strong>. Electrical and optical measurements were acquired
quasi-automatically over ~3 weeks, with <em>randomized sequencing</em> to reduce time-dependent biases.
Optical data were post-processed into a quantitative table with <strong>statistics</strong>, <strong>texture</strong>,
and <strong>ISO 25178</strong> surface parameters, and each operating point was
<strong>manually labeled</strong> by discharge coverage.
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