Fourier analysis of thermal diffusive waves

We present details of an experiment that improves earlier attempts to study the propagation of diffusive thermal waves inside a metal rod. In addition to technical improvements in data acquisition and heater control, the experiment physically illustrates insightful concepts in Fourier analysis. For...

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Veröffentlicht in:American journal of physics 2014-10, Vol.82 (10), p.928-933
Hauptverfasser: Sabieh Anwar, Muhammad, Alam, Junaid, Wasif, Muhammad, Ullah, Rafi, Shamim, Sohaib, Zia, Wasif
Format: Artikel
Sprache:eng
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Zusammenfassung:We present details of an experiment that improves earlier attempts to study the propagation of diffusive thermal waves inside a metal rod. In addition to technical improvements in data acquisition and heater control, the experiment physically illustrates insightful concepts in Fourier analysis. For example, the harmonic content and the differential damping of harmonics can be observed in the thermal domain, thus providing a valuable extension to the standard Fourier analysis of electric circuits.
ISSN:0002-9505
1943-2909
DOI:10.1119/1.4881608