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Sound speed measurements in air using a variable sound source and tubes.
MedLine Citation:
PMID:  19355095     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Sound speed measurement using standing waves and tubes is a standard experiment in every introductory physics laboratory. It is an experiment that is relatively simple to understand both conceptually and mathematically. The idea behind this work is to reproduce the same experiment, at low cost, making it suitable for project listen up. Two approaches were made. The first was to design and construct a small, low cost, variable sound source that could be used to determine the resonances of several fixed length tubes. The device is simple in design and easy to use. As the frequency is varied, the resonances can be determined by listening with the ear. Once done, the sound speed can be easily calculated. The second method was to use a free, online, function generator as the sound source and repeat the experiment as previously discussed. Results of both methods will be given and demonstrated along with pros and cons of each.
Authors:
Stanley A Cheyne; Walter C McDermott
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  125     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-04-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2625     Citation Subset:  IM    
Affiliation:
Dept. of Phys. and Astronomy, Hampden-Sydney Coll., Hampden-Sydney, VA 23943.
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