An experimental study on the sound and frequency of the Chinese ancient variable bell
EUROPEAN JOURNAL OF PHYSICS(2009)
摘要
This paper describes an interesting sound phenomenon from a modern copy of the Chinese ancient variable bell which can emit distinctly different sounds at different temperatures. By means of audition-spectrum analyser software-and PC, the sound signals of the variable bell are collected and the fundamental spectra are shown on the PC. The configuration is simple and cheap, suitable for demonstration and laboratory exercises.
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关键词
spectrum,acoustics,climate,physics
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