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Modelling of the Temporal Behaviour of the Inter‐Anode Current in a System of Two Coupled Electrical Discharges
Author(s) -
Stan C.,
Cristescu C.P.,
Alexandroaei D.
Publication year - 2002
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/1521-3986(200201)42:1<81::aid-ctpp81>3.0.co;2-7
Subject(s) - lyapunov exponent , anode , phase portrait , biasing , space charge , glow discharge , coupling (piping) , computation , voltage , phase space , physics , computational physics , spectral line , materials science , computer science , plasma , electrode , bifurcation , thermodynamics , quantum mechanics , metallurgy , electron , algorithm , nonlinear system
We present an experimental study on the dynamics of space charge configurations taking place in the inter‐anode space of two electrical glow discharges coupled by a dc biasing voltage of one discharge with respect to the other one in the presence of a small periodic signal. Modelling the system as two coupled perturbed Van der Pol oscillators, we investigate the influence of the coupling strength on the global dynamic response and compare it with experimental data. We find good agreement between the experimental data and the computation results for the following types of analysis: time series, spectra, phase portraits, Lyapunov exponents and correlation dimensions.