风扇振动噪声的声级计检测

 风扇振动噪声的声级计检测  

.应完成的项目：                                                          

 （1）风扇结构分析                                                             

 （2）风扇电机原理                                                             

 （3）风扇的振动噪声来源分析                                                            

 （4）声级计原理                                                           

 （5）利用声级计检测风扇的振动噪声                                                                

 （6）噪声信息分析与处理                                                                  

3.参考资料以及说明：                                                      

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   （2）                                                               

   （3）                                                              

   （4）                                                              

   （5）                                                                

   （6）                                                                 

   （7）                                                                 

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