摘要
Based on the principle of resonance to improve the sound intensity of loudspeaker, the effect of the sound characteristics of loudspeaker with different size of varying and constant cross-section tubes was studied by experiments. The results showed that the varying cross-section tubes are good radiators and the constant cross-section tubes of 1/4 wave length are good resonators. Air flow with sound periodically pass through varying cross-section tubes generating 137.2 dB high intensity sound at 1m distance from the outlet of the tube, whereas 120 dB for constant cross-section.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 715-718 |
| 页数 | 4 |
| 期刊 | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| 卷 | 28 |
| 期 | 8 |
| 出版状态 | 已出版 - 8月 2008 |