声强测量技术及其应用

声强是矢量，它可用于测量声功率，鉴别噪声源等方面，文章介绍了声强测量的基本概念，双传声器法测量技术及其作者开发的ＳＩＭＳ声强测量系统，还对双传声器法技术中的有限差分误差和相位失配误差问题进行了分析，并提出了看法。

Noise Intensity Testing Technique and its application

Noise intensity is a vector which can be used to test noise power, to distinguish noise source, etc.The article introduced basic concept of noise intensity testing, double noise sensor testing and newly developed SIMS noise intensity testing system. An analysis is made on limited differential error and unmatched phase error in double noise sensor testing. The new testing method mentioned in this article is available for reference to the engineers who are specialized in noise control of the products and suppied them a new way for selection in their works.