Results 271 to 280 of about 9,389 (307)
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Spark discharges in iodine vapour
Journal of Physics D: Applied Physics, 1981Sparks in iodine vapour have been studied at pressures between 0.08 and 0.80 Torr, and for gaps of the order of 10 cm. Sparks were initiated in non-uniform fields, using voltage pulses between 1 kV and 3 kV, corresponding to overvoltages of up to 300%. Development of the spark proceeds through a glow phase to a filamentary arc.
D B Lewis, G A Woolsey
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Physics World, 1991
I refer to the article by Keith Davies and Jason Kerr (February, Physics in Action p35). Based on work carried out many years ago for electrically sensitive explosives, the capacitance of the human body in explosive environments is generally taken as 500 pF and the likely maximum electrostatic charge potential as 10 kV, giving a stored energy of 25 mJ.
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I refer to the article by Keith Davies and Jason Kerr (February, Physics in Action p35). Based on work carried out many years ago for electrically sensitive explosives, the capacitance of the human body in explosive environments is generally taken as 500 pF and the likely maximum electrostatic charge potential as 10 kV, giving a stored energy of 25 mJ.
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Excitation temperatures in spark discharges
Spectrochimica Acta, 1957Abstract The paper describes measurements of spectral line intensities in the vapour clouds emitted from the electrodes in controlled spark discharges carrying a current of rectangular pulse shape. Measurements were made during current flow and in the afterglow for the whole discharge and with spatial resolution.
C.M. Cundall, J.D. Craggs
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Spark discharges for surgical applications
2010 IEEE International Power Modulator and High Voltage Conference, 2010We have investigated the potential of spark discharges as a minimally invasive surgical tool. The spark was generated between the tips of two 0.4-mm acupuncture needles, which were inserted into the tissue. The needle tips were facing each other at a distance of 7 mm.
Juergen F. Kolb +3 more
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Electrode Erosion by Spark Discharges
British Journal of Applied Physics, 1950Theoretical estimates of the areas of electrode hot-spots are made from a consideration of the lateral spread of the electrons and positive ions due to diffusion and their space charge. Areas thus found show that very high current densities of the order 106 A/cm2 are possible in typical short spark gaps at atmospheric pressure.
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An equivalent discharge model of electrostatics spark
Journal of Electrostatics, 2021Zhiyu Wang, Shuliang Ye
exaly