摘要
通过实验证实对"水杯编钟"纵敲杯口、横敲杯壁时,分别是空气柱和杯体发声.查找出了部分文献认为纵敲杯口和横敲杯壁发声相同的这一不适结论的原因是模型错误和测量方法不同.实验还表明"水杯编钟"构成8度音程问题并非如通常认为的不能实现或很难实现.
There are different views in current references about the vibration source and whether it can make eight scales musical interval when the glass chimes produce sound. In this paper,the following evidence by the experiment is provided. If the rim of the glass is tapped,the air column produces sound,but if we tap the outer wall of the glass,the glass body produces sound. Thus we find out the reasons why some references think that they produce the same sound. First,some research models are incorrect. Second,measurement methods are different. For the eight scales musical interval about the＂glass chimes＂,it is proved by the experiment that it is not impossible or very difficult to produce it.
出处
《大学物理》
北大核心
2015年第8期28-33,共6页
College Physics
基金
南京市教育科学"十二五"规划2013年度课题(L/2013/195)
中国教育学会物理教学专业委员会2013-2016年全国物理教育科研重点课题之阶段性研究成果
关键词
水杯编钟
音频
音调变化
频谱分析
虚拟仪器
watered glass chime bell
audio frequency
tone＇s change
frequency spectrum analysis
virtual apparatus
