用声强法成功地识别出燃烧噪声的辐射途径。
Through Sound density theory, the burning noise's radiation progress approach was successfully identified.
用声强法对车外噪声的主要声源进行了鉴别。
With sound intensity method, major sources of the exterior vehicle noise are identified.
该文介绍了声强法的原理和通风机噪声的声强测量方法，有一定实际应用价值。
This paper introduces the principles of sound intensity method and the application of the method to measure the noise of the fan.
本文从工程实用角度出发，以实验分析为基础来探讨声强法测量声功率的误差问题。
In this paper, the errors of sound power determination using sound intensity measurement are studied, based on the analysis of experimental results with the eyes of engineering application.
根据双水听器测量声强法原理进行了误差分析，提出了该双水听器声强测量系统的校准方法。
According to the principle of two-hydrophone method for intensity measurement, the error analysis is done.
使用声强法对木工带锯机的噪声特性进行了测量，测得三面的声强值和噪声的矢量图、高线图、三维图。
The noise characteristics of the idle bandsaw were measured with sound intensity method. The values of sound intensity, vector chart, contour chart and mesh chart of noise were obtained.
基于双水听器互谱测量法，研制的水声声强测量设备可用于测量水下声源产生的声场中任意点的声强量值或任意面上的声强量值分布。
Based on measuring the cross-spectrum density of sound pressure between two hydrophones, the facility for underwater sound intensity measurement is investigated and designed.
运用声强测试技术的双传声器法原理，对一台车用汽油发动机在半消声室内进行了声强测量。
Based on "two-microphone" method, a sound intensity measurement was carried out towards a vehicle four-stroke gasoline engine in a semi-anechoic room.
本文讨论了相距很近的两个点声源的声强分布，发现位于声源之上的平面法向声强在某些区域为负向声强。
The sound intensity distribution in the sound field of two closely spaced simple harmonic point sound sources have been studied in this paper.
所以在应用双传声器声强测量法测量声功率时将受到有旋性的影响。
The measurement of sound power by use o the two-microphone technique will be affected by the rotation of the active intensity.
基于声强矢量测量法提出了舰船目标运动参数的估计方法，并提出了快速算法。
Based on acoustic intensity, the estimation of ship motion parameters is put froward, and a rapid algorithm is introduced.
针对图像背景噪声强的特点，提出了一种基于感兴趣区域(ROI)的结构光条纹中心处理方法，即在ROI内用最大类间方差法进行阈值分割再用重心法进行细化。
Aim at removing the background noise in the large measuring range system (about 2m), a method which combines Otsu based on ROI and gray barycenter method is proposed.
针对图像背景噪声强的特点，提出了一种基于感兴趣区域(ROI)的结构光条纹中心处理方法，即在ROI内用最大类间方差法进行阈值分割再用重心法进行细化。
Aim at removing the background noise in the large measuring range system (about 2m), a method which combines Otsu based on ROI and gray barycenter method is proposed.
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