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Source publication
Instability of liquid dielectrics surface, being developing after the action of an alternating current corona discharge pulse, has been experimentally investigated. Voltage amplitude on the corona electrode reaches 70 kV, frequency is 17 MHz, and pulse duration is 0.5-1 μs. This is similar to rose-window instability at electrode height above the li...
Contexts in source publication
Context 1
... needle is located on the axis of the Petri dish with a liquid di- electric 3. Photographing of an instability region is fulfilled via the camera 4; a flashlight 5 is used for backlighting. The height of the needle tip above the liquid surface is adjusted with a ruler on a tripod 6. Profile of the tip is similar to para- bolic, see Figure 2. ...
Context 2
... voltage drop depends on the ratio of needle with supply wire capacity charging rate to the rate of rise of a spark discharge current between the cutting-out electrodes. A digital USB-oscilloscope with standard probe in the grounded shielding connected to it was used to record the magnitude and shape of electric field pulses from the co- rona-producing electrode, see Figure 2. The probe was fixed on a tripod at a distance of 50 mm between the probe and the needle tip. ...
Citations
... Works [1][2][3] showed that the presence of corona discharge leads to the disturbance of the liquid surface. [1][2] showed that corona discharge causes polygonal cells to appear on the surface of the liquids with low conductivity. ...
This article presents the results of investigation on the corona discharge and its influence on the water surface during electrolysis and paraffin combustion. The dependences of the voltage-current characteristics of the discharge from the distance between tungsten needle and grounded metal plate are presented. Emission spectra of flame radiation during the paraffin combustion with the working corona discharge were investigated. The temperature of the paraffin flame was determined from the continuous radiation spectrum.
