Video-based spatial portraits of a nonlinear vibrating string

Umer Hassan, Zubair Usman, Muhammad Sabieh Anwar

Research output: Contribution to journalArticle

9 Scopus citations


The article describes a systematic experimental study of a string vibrating nonlinearly. The string is tracked in real time using strategically located cameras; the video tracking enables a remote observation of the oscillator without perturbing its inherent nonlinearities. We show that our technique can help probe the parametrically excited oscillations and study phenomena such as elliptical and circular trajectories near resonance, resonance fold-over, jump, hysteresissubharmonic resonance. The experiment has been successfully employed in the advanced physics laboratory.

Original languageEnglish (US)
Pages (from-to)862-869
Number of pages8
JournalAmerican Journal of Physics
Issue number10
StatePublished - Sep 18 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Video-based spatial portraits of a nonlinear vibrating string'. Together they form a unique fingerprint.

  • Cite this