Literaturnachweis - Detailanzeige
Autor/inn/en | Shamim, S.; Zia, W.; Anwar, M. S. |
---|---|
Titel | Investigating viscous damping using a webcam. |
Quelle | In: American journal of physics, 78 (2010) 4, S. 433-436
PDF als Volltext |
Sprache | englisch |
Dokumenttyp | online; gedruckt; Zeitschriftenaufsatz |
ISSN | 0002-9505; 1943-2909 |
DOI | 10.1119/1.3298370 |
Schlagwörter | Videoanalyse; Messwerterfassung; Mechanik; Physik; Viskosimeter; Viskosität |
Abstract | We describe an experiment involving a mass oscillating in a viscous fluid. The mechanical oscillator is tracked using a simple webcam, and an image processing algorithm records the position of the geometrical center as a function of time. Interesting information can be extracted from the displacement-time graphs, in particular, for the underdamped case. For example, we use these oscillations to determine the viscosity of the fluid. Our mean value of 1.08_0.07 mPa s for distilled water is in good agreement with the accepted value at 20 °C. The experiment has been successfully employed in an introductory laboratory setting. © 2010 American Association of Physics Teachers. |
Erfasst von | Arbeitsgruppe Didaktik der Physik, Universität Osnabrück |
Update | 2010/3 |