The Influence of Electrode Heating On the Force Generated On a High Voltage Capacitor with Asymmetrical Electrodes

When a high DC voltage is applied to a capacitor with strongly asymmetrical electrodes, it generates a mechanical force that affects the whole capacitor. This is caused by the motion of ions generated around the smaller of the two electrodes and their subsequent interaction with the surrounding medium. If one of the electrodes is heated, it changes the conditions around the capacitor and influences the process of ionisation, thus changing the value of the generated force. This paper describes these changes and gives reasons behind them. Further the experimental results are given as proof of the ionic mechanism of the phenomenon.

Authors:

• Jiří Primas
• Michal Malík
• Darina Jašíková
• Václav Kopecký

Keywords:

• Capacitor with asymmetrical electrodes
• Generated force
• Heated electrode
• High voltage.

References:

[1] T. Bahder, Ch. Fazi, "Force on an Asymmetrical Capacitor," ARL-TR-
3005, Army Research Laboratory, Adelphi, 2003.
[2] J. Primas, M. Malík, D. Jašíková, V. KopeckÛ, "Description of the Force
on a High Voltage Asymmetrical Capacitor," ISMOT Proceedings 2011
Conference, Praha: FEL ─îVUT, 2011. ISBN 978-80-01-04887-0.
[3] J. Primas, M. Malík, D. Jašíková, V. KopeckÛ, "Force on high voltage
capacitor with asymmetrical electrodes," Proceedings of WASET 2010
Conference, pp. 335-339 Amsterdam. ISSN 1307-6892.