汽车噪声声强测量分析系统的开发及应用

本文提出一种基于微机的声强测量分析系统，详细讨论有关理论和技术关键，并用于汽车发动机表面声源识别，证明该系统是研究和控制汽车噪声的有力工具。

The Development and Application of Sound Intensity Measurement and Analysis System for Automobile Noise

In this paper,a measurement and analysis system of sound intensity based on microcomputer is presented.Its theory and key techniques are detailed.The identification of noise source in an engine is described as an application example of the system. It then comes to a calculation that the system is a powerful tool for automobile noice study and control.