喇叭共振和预防研究

Research of resonance and prevention of speaker

基于喇叭的共振原理,提高扬声器的发声强度并尽可能的降低因振动而消耗的能量,从而提高喇叭的效率。依照理论计算数据作为后续试验基础,通过多组试验对比,分别对输入谐振频率进行调节,来检测各组试验的音量即声能。试验结果表明当输入谐振频率与喇叭的固有频率相同时,喇叭出现共振,此时检测喇叭的声能是相对较弱的。

In order to improve the work efficiency of speaker, measures such as enhancing the intensity of sound of loudspeaker and reducing the energy consumption caused by vibration as much as possible, which based on speaker＇s resonance principle ,being carried out. According to theoretical arithmetic data which as a basis for the following experiments ,the enter resonance frequency be adjusted respectively in several comparative tests to detect the volume （sound energy）of them. The results show that resonance of loudspeaker will take place when the enter resonance frequency equals to the natural frequency and the sound energy is relatively diluted at this time.