• The average acoustic pressure sensitivity is-162.

    平均声压灵敏度-162。

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

    本文给出了声压灵敏度理论结果

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  • At higher acoustic pressure, microbubble fragmentation, and unstable cavitation, also called inertial cavitation occurs.

    较强声场作用下会发生破裂,发生不稳定化,称为惯性空化。

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  • Compared to available fiber optic acoustic sensors, this sensor gives more efficient output induced by acoustic pressure.

    与同类光纤传感器相比,有更高的声光转换效率。

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  • Method:A hydrophone is used as energy converting equipment to collect waves of acoustic pressure in the field of ultrasonic.

    方法采用水听器作为换能器采集超声信号空间声场焦平面上一点声压波形

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  • Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.

    方法采用水听器作为换能器通过采集超声信号空间场内一点声压波形

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  • The acoustic field is calculated through the integral equality of acoustic pressure and velocity at the axial impedance discontinuous planes.

    声场通过轴向阻抗间断面的声压和声质点速度积分相等计算

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  • In this paper, acoustic-structure sensitivity is used to predict the variation of acoustic pressure with the change of structural parameters.

    声学-结构灵敏度用于预测结构辐射声压随结构参数变化对低噪声结构设计具有重要指导意义。

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  • Objective: To evaluate the value of contrast-enhanced ultrasonography with low acoustic pressure in differential diagnosis of focal liver lesion.

    目的评价声压超声造影技术占位性病变中的鉴别诊断价值

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  • Based on modes modification method, the acoustic pressure is found and reduced by optimizing the velocity of the nodal point in main vibrant area.

    基于模态修改优化主要振动区域腹部节点速度降低车内噪声。

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  • Implementing Fourier Transform to solve the acoustic pressure correction equation in the frequency domain can avoid cockamamie retarded time calculation.

    通过傅立叶变换求解声压方程避免了繁琐时间延迟计算

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  • The radiated power and acoustic pressure on the shell sur face are calculated, and the influence of the layer area on the shell "s radiation is discussed."

    计算圆柱表面辐射功率辐射声压讨论了阻尼覆盖面积辐射影响

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  • We get and analysis the data of the reverberation, noise and acoustic pressure level of the Conference Hall and Lecture Hall in some northern university in measurement.

    实测分析北方大学甲报告厅和乙会议厅混响时间、景噪声、场数据

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  • An acoustic vector hydrophone measures the scalar acoustic pressure and the vector acoustic particle velocity, thus the DOA can be estimated by single vector hydrophone.

    矢量水听由于获取声场中标量(声压)矢量(振)信息,因此单个的矢量水听器就可实现目标方位估计。

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  • The following work has been done:(1) Analyzing the influence of acoustic frequency, acoustic pressure amplitude and initial bubble radius towards bubble dynamics respectively;

    主要工作结论为:(1分析声场频率声压气泡初始半径气泡动力学过程影响

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  • The diesel engine's noise is measured by using the acoustic pressure method. It separates successfully the engine's combustion noise, mechanical noise and inlet noise in test.

    采用声压测量柴油机进行了整机噪声的测量,通过试验研究成功分离发动机燃烧噪声、机械噪声进气噪声。

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  • Acoustic-Structure sensitivity is used to predict the change of acoustic pressure when structure design variable was changed, which is significance for reducing noise of structure.

    声学-结构灵敏度用于预测结构辐射声压随结构设计变量变化结构降噪设计重要意义

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  • Under the circumstances that there are multi noise sources, we can get the effective method of how to judge main the noice source by deriving the formula of acoustic pressure evel decibel.

    多个噪声源情况下通过推导声压级分贝值运算公式,得出判定噪声源的有效方法

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  • This paper introduces the theory calculation of shear wave reflection for block corner. And it derives the echo acoustic pressure theory calculation formula for block corner and its shape defect.

    阐述横波反射中的理论方法计算推导端角及端角形缺陷的回波声压理论计算公式

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  • "Shock waves are acoustic waves that create pressure that can be focused," says Medispec's Gil Hakim, the company's director of new product development.

    冲击波一种声波形成可以聚焦压力,”Medispec公司产品开发总监吉尔哈姬姆

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  • Because branches of this nerve directly influence your balance and hearing, pressure from an acoustic neuroma can cause hearing loss, ringing in your ear and unsteadiness.

    由于神经分支直接影响平衡听觉听神经瘤对该神经的压迫导致听觉丧失耳鸣和不稳定性。

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  • The software RFPA is used to simulate the borehole burst, validate critical pressure, and research the stress drop and acoustic emission before and after occurring the burst in the borehole.

    RFPA软件钻孔冲击进行了数值模拟验证了钻孔冲击实验得出临界压力研究钻孔冲击应力发射等特征。

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  • This article introduces how to determine the conditions under which a defective pressure vessel can continue to use and operate in a safety way, by means of acoustic emission technique.

    介绍利用发射技术确定缺陷压力容器能否继续使用安全运行条件

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  • The properties of piezoelectric ceramics at high electric power and hydrostatic pressure are concerned for the application in underwater acoustic transducers.

    特别对于水声换能器应用而言,压电陶瓷大功率高静压力下性能人们十分关心的。

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  • The acoustic vector hydrophone is a new type sensor, which can simultaneously measure the pressure and particle velocity of the same point in acoustic field.

    矢量传感器一种新型传感器,可以空间共同时测量声场中的声压速信息

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  • Higher sound pressure level (SPL) favored both collision efficiency and agglomeration kernel, so acoustic agglomeration increased in the higher-intensity acoustic field.

    声压增大不仅使团聚函数增大,增大了碰撞效率,使高声压级时团聚更有效。

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  • The paper introduce the theory of surface acoustic wave sensor, the digital signal treatment, the method of soft design in the passive and wireless tire pressure monitoring system in detail.

    文章详细介绍了无源无线轮胎压力监测系统中的表面传感器工作原理、回波信号组成、数字信号处理软件开发方法

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  • A new method of low intensity radiated noise measurement is shown using acoustic combined sensor and combined signal processing with pressure and particle velocity.

    本文研究运用组合传感器声压联合信号处理技术进行噪声通过特性测量

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  • A new method of low intensity radiated noise measurement is shown using acoustic combined sensor and combined signal processing with pressure and particle velocity.

    本文研究运用组合传感器声压联合信号处理技术进行噪声通过特性测量

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