acoustic power

A Review of Acoustic Power Measurement Mothods for Thermoacoustic Systems The Heat-Work Conversion Analysis of Irreversible Carnot Cycle

热声系统的声功测量方法不可逆卡诺循环的热功转换特点分析

The effects of the rigid or free surface on acoustic power and radiation directivity radiated by a pulsating sphere are analytically studied.

数值结果表明：在低频和自由表面距离脉动球源较近时，自由表面的存在会大大地减小脉动球源的辐射声功率，自由表面对辐射声功率的影响可高达-40dB左右。

The acoustic power radiated by a vibrating surface is the integral of acoustic intensity on a closed surface which surrounds the vibrating surface.

在声场中，选择包围振动表面的封闭表面，振动表面辐射的声功率为声强在该封闭表面上的积分。

A method of measuring acoustic power in thermoacoustic resonator based on theory of plane wave decomposition

基于管内平面波分解的热声谐振管声功测量方法

Thermoacoustic engine is a kind of machine, which converts thermal energy into acoustic power by thermoacoustic effect.

热声发动机是一种通过热声效应实现热能与声能转化的装置。

Research of Underwater Acoustic Power Amplifier and Broadband Matching Technique

水声功率放大器与宽带匹配技术研究

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

铁路常见固定性声源声功率级的测定

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。

In this paper, six measuring methods are discussed which are used to meas-ure the acoustic power of piezoelectric transducer under Practical conditions.

本文介绍压电换能器实用状态下声功率的脉冲、恒压、恒流等6种测量方法。

The experimental results have demonstrated that the pressure amplifier not only amplifies the pressure ratio, but also improves the acoustic power.

实验结果表明压力放大器不仅可以放大压力，还能提高负载入口声功和热机的效率。

This will be deafening sound acoustic power.

这声音将震耳欲聋,铿锵有力.

It was experimentally proved for the first time that the maximum acoustic power output can be transferred to the load when the acoustic resistance of RC load equals to its acoustic capacitance impedance.

首次通过实验验证了当声阻与容抗相等时，热声发动机向阻容负载传递的声功率最大。

Generally, only the acoustic power from the positive side is used, however, both positive and negative sides export acoustic power.

通常，仅仅扬声器正面辐射的声功被利用，而实际上，扬声器正反两面都辐射出声功。

The complex sound field distribution of the focused transducers was calculated by the coordinate transform method, and the acoustic power was measured.

该文应用坐标变换法对该聚焦换能器的复杂声场分布进行了数值计算，并测定了其声功率。

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

混响室内声源的声功率输出及声强分布

Influences of transducer frequency and acoustic power on the measurements of ultrasonic integrated backscatter

探头频率和声波能量对心肌背向散射积分测值的影响

The intrinsic relation between the pneumatic parameter, structural parameter and acoustic power level for centrifugal compressor is given.

给出了离心压缩机气动参数和结构参数与声功率级之间的内在关系。

Thermoacoustic effect is the phenomenon of the conversion between thermal energy and acoustic power.

热声效应是热与声之间相互转换的现象，即声场中的时均热力学效应。

The computed and experimental results showed that maximal acoustic power can be transferred to the load when the acoustic resistance of the RC load is equal to its acoustic capacitive impedance.

计算和实验结果表明，当负载的声阻与容抗相等时，热声发动机向阻容负载传递的声功率最大，此时，负载入口处的压力振幅和压比最小，板叠热端温度最高；

This is achieved by investigating relationship between the probe output and the radiated acoustic power.

通过测量清洗液中的声功率与探头输出信号电压间的关系，用数字形式来显示超声场强度。

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

Also two important energy forms of thermoacoustic system: acoustic power and total power are discussed in details.

在此基础上，阐述了热声系统中两种重要的能量形式：声功和总能流，得到了它们的可用公式。

Determination of acoustic power on acoustic radiation modes

基于声辐射模态确定声功率

On the Acoustic Power Radiated by an Electrical Machine

电机电磁噪声的辐射声功率

Located in the middle of the canyon area in DaDu River DaGang Mountain power station also meet similar engineering problems, left the foundation surface ( EL1135-1040m) acoustic detection already excavation single-drillhole acoustic wave abnormity is low.

位于大渡河流域中游峡谷地段的大岗山水电站也遇到了类似的工程问题，左岸（EL1135-1040m）已开挖建基面上声波检测异常，单孔声波波速偏低。

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

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

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

三点法测量强声源声功率

The acoustic power of a pulsed sound

脉冲声的功率

When the acoustic power was increased from 0 W to 1000 W, the cyclohexene conversion was increased from 7.67% to 8.78%.

当超声波功率从0W增大到1000W时，环己烯转化率从7.67%增大到8.78%。