acoustic power

1. 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
2. The acoustic pressure and acoustic power of the whole structure are obtained by superposing those of each infinitesimal element.
   以每个微元为一单位，分别计算声压和声功率之后叠加起来，即得整个结构的声辐射。
3. 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。
4. Results show that the sensor output signal in ˉ tensity is basically linear to the acoustic power which prompts us to detect ultrasound using optic fiber gratings sensors, provides a new method for noninvasive detection of ultrasound in body.
   结果表明传感器输出信号强度与声功率表现了基本的线性性，提示可以利用光纤光栅检测超声，为体内超声场的无创测量提供了新的工具。
5. 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
6. 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
7. 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
8. 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。
9. 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
10. Based on the acoustic radi-ation modes and the acoustic field distribution modes, the formula for determining the acoustic power radiated from any vibrating surface is derived. The modal analysis in the acoustic radiation problems is enriched.
    基于声辐射模态和声场分布模态，推导了计算任意形状振动表面辐射声功率的计算公式，丰富了声辐射问题中的模态分析内容。
11. 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。
12. 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。
13. 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。
14. 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。
15. This paper introduces a kind of pulse tube regenerator, which can recover part of the lost acoustic power, and then analyzes it in two aspects: acoustic power recovery and phase angle adjustment.
    本文介绍了一种带声功回收的脉管制冷机，从功回收和相位调节角度对它进行了分析。
16. Based on measurement of acoustic power in liquids an intensity evaluation method for ultrasonic fields is proposed to satisfy practical needs in evaluating ultrasonic cleaning equipment, and controlling ultrasonic intensity.
    为解决超声清洗中超声设备性能的评价，以及工程应用中超声强度的选取和控制问题，提出了一种根据声功率大小来测定声场强度的评价方法。
17. 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。
18. By adjusting valve opening and the volume of the gas reservoir, the influence of resistance and empty volume of load on the acoustic power output and thermal efficiency of the engine was also investigated.
    通过改变阀门开度和气库容积大小，分析了负载的阻力和空体积对声功输出和系统热效率的影响。
19. After acoustic power output of the thermoacoustic engine was measured accurately by variable-load method, the mutual relations of power output with pressure ratio, heating power and heating temperature were analyzed.
    应用变负载法，对该热声发动机的声功输出进行了精确测量.分析得到声功输出与热声发动机压比、加热功率和加热温度之间的相互影响关系。
20. 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。
21. 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。
22. It is shown that the acoustic power radiated by panel structure depends on not only exterior sound field and natural characteristics of panel but also modal coupling characteristics between acoustic cavity and panel structure.
    研究表明：壁板结构的辐射声功率不仅与外场声场声压、壁板本身的固有特性有关，而且与壁板和内声空间的耦合特性密切相关。
23. 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
24. A plate is involved to show the mode shapes of the acoustic power modes, sound power computation using the power modes and the modal truncation of the power modes.
    文中以板结构声辐射为例对声功率模态的振型、声功率模态下的声功率计算和模态截断进行了计算分析并对结构声辐射的声功率模态控制进行了讨论。
25. For silica planar waveguide AO Bragg device, the influences of acoustic frequency, waveguide mode and thickness on overlap integral and the impacts of waveguide mode, acoustic power and acoustic aperture on diffraction efficiency are discussed.
    对Si02平板波导型声光Bragg器件讨论了声频率与光波导模式及厚度对重叠积分的影响及波导模式、声功率和声孔径对衍射效率的影响。
26. Acoustic power and radiation efficiency of plate in the water are computerized and compared with those in the air. The numerical results in the water show that vibration has modal interaction at low frequency.
    对板结构在水下的辐射声功率、辐射效率进行了计算，并和空气中的结果进行对比。
27. 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。
28. Then a radiated acoustic power forecast model of the SCLD system is established. Based on the numerical methods, the radiation ability and its influencing factors of sheet steel with SCLD structure are investigated.
    随后，建立了SCLD系统辐射声功率预测模型，基于数值方法，开展了SCLD薄钢板结构辐射能力及其影响因素研究。
29. By using the acoustic fields reconstruction based on the acoustic radiation modes, the method for calculating acoustic power radiated at medium and low-frequency is proposed.
    针对中低频声辐射，提出了基于声辐射模态，利用声场重构进行声功率预估的方法。

noun

1. the physical intensity of sound

   Synonym:    sound pressure level