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

1、

Finite Element Analysis of Acoustic Power Radiation by Electrical Machines

利用有限元法分析电机辐射的声功率

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2、

Analysis and Research on acoustic power recovery in pulse tube refrigerator

声功回收型脉管制冷机的分析与研究

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3、

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

三点法测量强声源声功率

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4、

Radiation Force Calculation and Acoustic Power Measurement of High Intensity Focused Ultrasound in Acoustic Field of an Artificial Abortion Equipment

高强度聚焦超声终止早孕机声场的辐射力计算与声功率测量

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5、

This paper also studied the influence of acoustic power density, temperature and other parameters on the ultrasonic cleaning through experiment.

研究了声功率密度、温度等重要工艺参数对超声波清洗的影响规律。

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6、

Moreover, taking on the Rayleigh integral the far field acoustic pressure and the directivity formula is obtained.

并对其声场远场采用瑞利积分推导了一般表达式和指向性公式。

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7、

Measurement of the Frequency Response of the Acoustic Pressure Sensitivity of the Fiber-Optic Hydrophone with Linear Sweep Signal

利用线性扫频信号测量光纤水听器的声压灵敏度频响特性

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8、

Comparing to the acoustic pressure detector it is the main advantage of the signal detection technique of vector hydrophone.

这正是矢量水听器检测技术的诱人之处。

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9、

The relation of luminous intensity and temperature at the same acoustic pressure and frequency has been studied.

研究了在一定的频率和超声功率条件下，声致发光强度随温度的变化关系。

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10、

Optimum Weight Design of Plate with Acoustic Pressure Restrict for Coupled Acoustic-Structure Systems

声场-结构耦合系统声压约束下板重量优化设计研究

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11、

Spatial correlation coefficients of acoustic pressure and particle velocity based on vector hydrophone

基于矢量水听器的声压和质点振速的空间相关系数

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12、

On reconstruction of acoustic pressure fields using the radiation modes

利用声辐射模态对声场进行重构

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13、

Inversion of Elastic Modulus of Thin Plate Using Acoustic Pressure Transmitting Coefficient Spectrum

应用超声声压透射系数谱反演薄板的弹性模量

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14、

Theoretical analysis of the acoustic pressure sensitivity was given in this letter.

本文给出了声压灵敏度的理论结果。

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15、

Under the conditions of different relative densities of sand and different vertical pressures, the variations of acoustic emission and tip resistance during the penetration were investigated.

针对砂土于不同相对密度与垂直应力之条件，探讨音波反应、锥尖阻抗在贯入过程之变化。

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16、

Characteristic extraction of acoustic signals emitted from resistance spot welding process based on independent component analysis

基于独立分量分析的点焊特征声音信号提取

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17、

The method of computational fluid dynamics ( CFD) and test has been used to study the fluid dynamics and acoustic performances of resistance muffler.

本论文用计算流体动力学（CFD）和试验法研究抗性消声器的流体动力学特性和消声特性。

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18、

The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.

利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。

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19、

A standing wave thermoacoustic engine connected with an RC ( acoustic resistance and acoustic capacitance) load was simulated with linear thermoacoustics to study the influence of load impedance on the performance of the thermoacoustic engine.

为了探索负载的阻抗特性对热声发动机性能的影响，利用线性热声理论，对驻波型热声发动机驱动阻容负载进行了数值模拟。

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20、

When the acoustic resistance of the load is fixed, oscillating frequency, heating temperature and input power to RC load will increase along with the increase of the length of the pressure amplifier in a certain range.

在负载的声阻固定的情况下，一定范围内振动频率、加热温度、负载入口声功随着压力放大器长度的增大而增大；

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