声强测量系统的开发及其在汽车噪声源识别中的应用
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摘要
本文在剖析了国内外现有声强测量设备的组成,分析了声强测量系统的发展趋势之基础上,研制成功了基于微型计算机、DASP软件、Windows软件平台的一体化互谱声强测量分析系统。
     本文就声强、声压、三维声强谱、等声强线以及A计权、1/3倍频程的测量、计算、显示、打印等进行了深入的研究,并编制了一整套运行于Windows平台的图形化多文档界面声强测量分析软件。系统的硬件技术指标、软件功能和整体性能均达到较高水平,基本满足了实际工程测量的需要。该系统具有结构简单、成本低的特点。
In this dissertation, the available sound intensity instruments are dissected, the development tendency of the sound intensity measurement and analysis (SIMAS) is predicted and a SIMAS using cross-spectral method based on a microcomputer, DASP software and the Microsoft Windows platform is developed.
    To measure, calculate, display, print sound intensity sound pressure, sound power, three dimensional sound intensity spectrum, equal intensity contour are all deeply studied. A set of software using Multiple Document Interface(MDI) running under Microsoft Windows platform is developed. The performances and the functions of the system are all at the top level domestically and it can be used in real engineering. It has characteristics of simple structure and low-cost.
引文
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