Results 181 to 190 of about 931,183 (212)
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Development of a short pulsed corona discharge ionization source for ion mobility spectrometry
Review of Scientific Instruments, 2005The development of a pulsed corona discharge ionization source and its use in ion mobility spectrometry (IMS) is presented. In a point-plane electrode geometry, an electrical pulse up to 12 kV, 150 ns rise time and 500 ns pulse width was used to generate a corona discharge in air. A single positive high voltage pulse was able to generate about 1.6×1010
An, YA +3 more
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[On-drift spectrometer with double successive separation with ionization in the corona discharge].
Aviakosmicheskaia i ekologicheskaia meditsina = Aerospace and environmental medicine, 2007An experimental high-resolution ion-drift spectrometer is described. Operating characteristics were improved by installation of a second grid gate in the center of the drift space. The ion-drift analyzer setups and the ranges of amplitude, length and temporary delay of control impulses were identified in the course of testing.
B L, Avetisiants +6 more
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Particle Formation of Materials Outgassed from Silicone Sealants by Corona-Discharge Ionizers
Journal of the IEST, 1996Particle formation of LMCS (low-molecular-weight poly-cyclo-dimethyl-siloxane) outgassed from silicone sealants by a corona-discharge ionizer was studied by measuring the number concentration and size distribution of formed particles as well as by qualitative analyses of formed particles with FT-IR (Fourier transformation infrared spectroscopy ...
Norikazu Namiki +3 more
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Ionization phenomenon in high-density gaseous and liquid argon in corona discharge experiments
Journal of Physics D: Applied Physics, 1997Experimental investigations of corona discharge in Ar for a wide region of fluid density from a rare gas up to a liquid have been carried out. Corona current has been observed for a point cathode voltage above the threshold value . Values of have been measured for a wide range of fluid density N and for different cathode radii .
N Bonifaci, A Denat, V Atrazhev
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Ionization Processes of Negative Corona Discharge Part 1. Review and Experiment
Proceedings of the Southwest State University. Series: Engineering and TechnologyThe purpose of the research is an experimental study of physical processes in the near-electrode zones of negative point electrodes in an electronegative gas (air) under the condition of a high-voltage field.Methods. Video image analysis, current-voltage characteristics measurements, and spectroscopy are used. The current-voltage characteristics of the
A. I. Zhakin, A. E. Kuzko
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IEEJ Transactions on Electrical and Electronic Engineering, 2019
Corona‐discharge air ionizers have been used to neutralize static electricity on electronic devices during manufacturing and/or inspection processes. The neutralization performance, that is, the neutralizing current density (JW) and the electric field (EW), in work area depends on the operating conditions.
Makoto Okano +3 more
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Corona‐discharge air ionizers have been used to neutralize static electricity on electronic devices during manufacturing and/or inspection processes. The neutralization performance, that is, the neutralizing current density (JW) and the electric field (EW), in work area depends on the operating conditions.
Makoto Okano +3 more
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IEEJ Transactions on Electrical and Electronic Engineering, 2016
The effects of an electric field shield on the electric field noise and neutralizing current of a corona discharge air ionizer were investigated as a means to prevent soft errors during quality control inspections. The neutralizing current and noise voltage were measured for shielded and nonshielded air ionizers using a charged plate monitor.
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The effects of an electric field shield on the electric field noise and neutralizing current of a corona discharge air ionizer were investigated as a means to prevent soft errors during quality control inspections. The neutralizing current and noise voltage were measured for shielded and nonshielded air ionizers using a charged plate monitor.
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Ionization processes of negative corona discharge. Part 2. Theory. Comparison with experiment
Proceedings of the Southwest State University. Series: Engineering and TechnologyThe purpose of the research is a theoretical analysis of ionization processes in the air, which are initiated by a high-voltage field generated by the negative needle-flat electrode electrode system. Methods. Fe, Cu, Al electrodes are used. Calculations are carried out using the methods of quantum mechanics and mathematical physics. Results. The
A. I. Zhakin, A. E. Kuzko
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Contamination control of a corona discharge air ionizer
2003 5th International Conference on ASIC. Proceedings (IEEE Cat. No.03TH8690), 2004M. Takeuchi +5 more
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[Morphology determination of ionization region in multi-needle-to-plate negative corona discharge].
Guang pu xue yu guang pu fen xi = Guang pu, 2010Based on the former work on the current-voltage characteristics of a multi-needle-to-plate negative corona discharge at atmospheric pressure, the present work uses the method of OES (optical emission spectrum) for measuring N2 emission spectrum, and the morphology determination of the ionization region has been investigated.
Peng-Hao, Su +2 more
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