Holographic study of a vibrating bell: An undergraduate laboratory experiment
作者:
Kristen Menou,
Benjamin Audit,
Xavier Boutillon,
Holger Vach,
期刊:
American Journal of Physics
(AIP Available online 1998)
卷期:
Volume 66,
issue 5
页码: 380-385
ISSN:0002-9505
年代: 1998
DOI:10.1119/1.18877
出版商: American Association of Physics Teachers
关键词: 01.50.P;42.;43.
数据来源: AIP
摘要:
An experiment combining holography and musical acoustics is described. Structures of vibration modes of a bell are visualized by time-average holography under either acoustical or mechanical excitation. The vibration amplitude as measured by an accelerometer shows very good quantitative agreement with that determined from our holograms by fringe counting. An effect of degenerate level separation is shown in the mechanical case. It is argued that this experiment is not only very inexpensive for a physics laboratory already equipped for holography, but that it also strongly stimulates students to deepen their insight into a variety of different topics in applied physics.
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