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Rollins College

Series

2008

Articles 1 - 3 of 3

Full-Text Articles in Physics

Time-Averaged Electronic Speckle Pattern Interferometry In The Presence Of Ambient Motion. Part I: Theory And Experiments, Thomas R. Moore, Jacob J. Skubal Aug 2008

Time-Averaged Electronic Speckle Pattern Interferometry In The Presence Of Ambient Motion. Part I: Theory And Experiments, Thomas R. Moore, Jacob J. Skubal

Student-Faculty Collaborative Research Publications

An electronic speckle pattern interferometer is introduced that can produce time-averaged interferograms of harmonically vibrating objects in instances where it is impractical to isolate the object from ambient vibrations. By subtracting two images of the oscillating object, rather than the more common technique of subtracting an image of the oscillating object from one of the static objects, interferograms are produced with excellent visibility even when the object is moving relative to the interferometer. This interferometer is analyzed theoretically and the theory is validated experimentally.


Experimental Investigation Of An American Five-String Banjo, Laurie A. Stephey, Thomas R. Moore Aug 2008

Experimental Investigation Of An American Five-String Banjo, Laurie A. Stephey, Thomas R. Moore

Student-Faculty Collaborative Research Publications

An experimental investigation of an American five-string banjo is reported. The acoustic spectra of the strings are analyzed and it is found that in many ways banjo strings behave in a manner similar to those on a piano. The terminating impedance presented to the strings at the bridge is reported and it is found to be generally much lower than the characteristic impedance of the strings. It is also shown that, for a properly tuned banjo, the mode shapes of the membrane are symmetric about the center even though there is a large asymmetric force due to the off-center placement …


The Normal Modes Of Cymbals, Robert Perrin, Gerry M. Swallowe, Sarah A. Zietlow, Thomas R. Moore Jan 2008

The Normal Modes Of Cymbals, Robert Perrin, Gerry M. Swallowe, Sarah A. Zietlow, Thomas R. Moore

Student-Faculty Collaborative Research Publications

No abstract provided.