Acoustic resonance spectroscopy for the advanced undergraduate laboratory

We present a simple experiment that allows advanced undergraduates to learn the principles and applications of spectroscopy. The technique, known as acoustic resonance spectroscopy, is applied to study a vibrating rod. The setup includes electromagnetic-acoustic transducers, an audio amplifier and a...

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Bibliographic Details
Published in:European journal of physics 2012-11, Vol.33 (6), p.1761-1769
Main Authors: Franco-Villafañe, J A, Flores-Olmedo, E, Báez, G, Gandarilla-Carrillo, O, Méndez-Sánchez, R A
Format: Article
Language:English
Subjects:
Acoustic resonance
Amplifiers
Analyzers
Bending
Communication, education, history, and philosophy
Exact sciences and technology
General physics
laboratories
Mathematical analysis
Networks
Physics
physics education
Physics literature and publications
Spectroscopy
student experiments
Surveys and tutorial papers, resource letters
Transducers
Vectors (mathematics)
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Description
Summary:We present a simple experiment that allows advanced undergraduates to learn the principles and applications of spectroscopy. The technique, known as acoustic resonance spectroscopy, is applied to study a vibrating rod. The setup includes electromagnetic-acoustic transducers, an audio amplifier and a vector network analyzer. Typical results of compressional, torsional and bending waves are analyzed and compared with analytical results.
ISSN:0143-0807
1361-6404
DOI:10.1088/0143-0807/33/6/1761