Characteristics of atmospheric pressure plasma jet generated by compact and inexpensive high voltage modulator

This paper presents the design and implementation of a miniaturized high-voltage power supply with power factor correction (PFC) for atmospheric-pressure plasma jet (APPJ) applications. The sinusoidal output frequency and voltage of the power supply can be controlled independently from 16 to 24 kHz and from 1 to 10 kVpeak, respectively. A helium APPJ load is used to assess the performance of the developed power supply. It is shown that the developed high-voltage power supply operates effectively, and the designed PFC converter improves the input current distortion of the power supply. Not only the power factor of the power supply is increased from 0.41 to 0.95, but it also provides a low-ripple DC voltage, which reduces the high-voltage ripple of the output from 730 to 50 Vp-p. In this paper, the proposed design integrates the PFC converter into the high-voltage power supply so that the developed power supply has better electrical characteristics and the overall power supply can be significantly miniaturized.

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Atmospheric pressure plasma jet with high-voltage power supply based on piezoelectric transformer

Review of Scientific Instruments ◽

10.1063/1.4874317 ◽

2014 ◽

Vol 85 (5) ◽

pp. 054703 ◽

Cited By ~ 12

Author(s):

Michał Babij ◽

Zbigniew W. Kowalski ◽

Karol Nitsch ◽

Jerzy Silberring ◽

Teodor Gotszalk

Keyword(s):

High Voltage ◽

Power Supply ◽

Atmospheric Pressure ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Atmospheric Pressure Plasma Jet ◽

High Voltage Power Supply ◽

Piezoelectric Transformer ◽

Pressure Plasma

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High-Accuracy Surface Topography Manufacturing for Continuous Phase Plates Using an Atmospheric Pressure Plasma Jet

Micromachines ◽

10.3390/mi12060683 ◽

2021 ◽

Vol 12 (6) ◽

pp. 683

Author(s):

Huiliang Jin ◽

Caixue Tang ◽

Haibo Li ◽

Yuanhang Zhang ◽

Yaguo Li

Keyword(s):

Surface Topography ◽

Atmospheric Pressure ◽

High Efficiency ◽

Atmospheric Pressure Plasma ◽

Plasma Jet ◽

Continuous Phase ◽

High Accuracy ◽

Phase Plate ◽

Atmospheric Pressure Plasma Jet ◽

Pressure Plasma

The continuous phase plate (CPP) is the vital diffractive optical element involved in laser beam shaping and smoothing in high-power laser systems. The high gradients, small spatial periods, and complex features make it difficult to achieve high accuracy when manufacturing such systems. A high-accuracy and high-efficiency surface topography manufacturing method for CPP is presented in this paper. The atmospheric pressure plasma jet (APPJ) system is presented and the removal characteristics are studied to obtain the optimal processing parameters. An optimized iterative algorithm based on the dwell point matrix and a fast Fourier transform (FFT) is proposed to improve the accuracy and efficiency in the dwell time calculation process. A 120 mm × 120 mm CPP surface topography with a 1326.2 nm peak-to-valley (PV) value is fabricated with four iteration steps after approximately 1.6 h of plasma processing. The residual figure error between the prescribed surface topography and plasma-processed surface topography is 28.08 nm root mean square (RMS). The far-field distribution characteristic of the plasma-fabricated surface is analyzed, for which the energy radius deviation is 11 μm at 90% encircled energy. The experimental results demonstrates the potential of the APPJ approach for the manufacturing of complex surface topographies.

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