A new approach to the spectral analysis of liquid membrane oscillators by Gábor transformation

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Liquid membrane oscillators very frequently have an irregular oscillatory behavior. Fourier transformation cannot be used for these nonstationary oscillations to establish their power spectra. This important point seems to be overlooked in the field of chemical oscillators. A new approach is presented here based on Gábor transformation allowing one to obtain power spectra of any kind of oscillations that can be met experimentally. The proposed Gábor analysis is applied to a liquid membrane oscillator containing a cationic surfactant. It was found that the power spectra are strongly influenced by the presence of various added substances.
LanguageEnglish
JournalJournal of Physical Chemistry B
Volume110
Issue number1
Pages (from-to)289-294
Number of pages6
ISSN1520-6106
DOIs
StatePublished - 12 Jan 2006