Wavelength Dependent End Correction for a Resonating Air Column

Details Wavelength Dependent End Correction for a Resonating Air Column Wavelength Dependent End Correction for a Resonating Air Column

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.6805k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #68.05; Bulletin of the American Astronomical Society, V

Computer Science

Sound

Scientific paper

Using an FFT to carefully measure the frequency of the fundamental mode of resonance, and accounting for the temperature dependence of the velocity of sound in air, we obtained fundamental resonance wavelengths for cavities of varying lengths in both closedand open-pipe configurations. The end correction, EC, is the difference between the measured pipe length and the effective cavity length, Leff (2 λαμδα and 4 λαμδα for open and closed pipes respectively). Preliminary results indicate that this end correction can be expressed as, EC = k λαμδα + e D, where k and e are empirically determined constants and D is the inner diameter of the pipe.

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