声源功率

高声强混响室声源声功率的估计

Evaluation of the sound source power in high intensity sound reverberation chamber

建立了声源声功率测量的通用数学模型。

The general mathematical model of sound power determination is established firstly .

铁路常见固定性声源声功率级的测定

Survey and Determination of Acoustic Power Level of Railway Regular Sound Source

方波扫描路径确定声源声功率误差特性分析

Error Characteristics of Determining Sound Power by Using the Orthogonal Scanning Path

三点法测量强声源声功率

Three points method for measuring acoustic power of high intensity sound sources

标准声源声功率级的半消声室检测法

Method for Semi-anechoic Room Used for Measurement of Sound Power Level of Reference Sound Sources

还介绍了通常噪声控制有三种途径：控制噪声源，降低主声源机械功率转化为辐射噪声的功率的比例；

Also introduced the usual noise control has three ways : The control noise source , reduces the main acoustic source mechanical efficiency to transform as the radiated noise power proportion ;

利用这些图和简单公式，通过测量管外一点的声压级就可确定管内声源声功率。

The figures can be used to easily calculate the sound power level of the sound source inside the duct through measuring the SPL at a single point outside of the duct .

通过对注水泵房设备声源声功率的测量和分析，确定每个噪声源重要性的排队次序，并识别其主要频率成分，作为噪声优化控制的基础。

The different noise contribution of every component in the water pump was found and its frequency construction was identified to select the optimal noise control technique by measuring and analyzing of sound power with method of sound intensity for water pump .

本文介绍了混响室法检测标准声源声功率级的方法，并对用混响室法检测标准声源声功率级的测量结果进行了不确定度的评定分析。

This paper introduces a method for reverberation rooms used for measurement of sound power levels of reference sound sources . The uncertainty of results in measurement of sound power level of reference sound sources in the reverberation room is evaluated and analyzed .

混响室内声源的声功率输出及声强分布

Sound intensity distribution and acoustic power output of a sound source in reverberation chamber

复正弦波模型在声源方向和功率谱检测中的应用

An Application of Composite Complex Sinusoidal Modeling to the Estimation of Directions and Power Spectra of Incident Plane Waves

本文证明，在混响室中测定功率不但与声源的自由空间功率有关，并且与声源和接收器的位置以及测量方法、平均方法有关。

It is shown that the sound power determined in a reverberation chamber depends not only on its free-space power , but also on the positions of the source and the receiver , as well as the way the measurements are made and averaged .

用声强法测量声源的声功率可以分为离散点测量法和扫描测量法。

Sound power determination using sound intensity methods can be categorized into the discrete point and scanning measurement methods .

用声强法对油田注水泵房设备声源声功率的测量分析

Measuring and Analyzing of Sound Power with Method of Sound Intensity for Water Pump in Oilfield

声强传感器特性对扫描声强法确定声源声功率的影响

Influence of the Two-Microphone Cross-Spectral Sound Intensity Probe on the Determination of Sound Power by Scanning