本文提出了以声脉冲管测量辐射头为方形的一种阵元(纵向振动换能器)的输入力阻抗的方法。
In this paper, a method of measuring the input mechanical impedance of the array element (longitudinal vibrating transducer) with square radiation head by using impulse sound tube is proposed.
另外还设计了一种非对称的多频纵振动换能器，其共振频率方程为：这种类型的多频纵振动换能器可以应用到超声清洗中。
Finally, an asymmetrical multi-frequency transducer is designed, the resonant frequency of transducer is obtained, that is, This type of transducer can be used in ultrasonic cleaning and other fields.
换能器由阵列微压电结构组成，这种压电材料在合适频率下的振动能够将电信号转换成超声波。
Transducers are made from arrays of tiny piezoelectric structures that convert electrical signals into ultrasound waves by vibrating at an appropriate frequency.
应用多尺度法得到了超磁致伸缩换能器几何非线性振动系统响应的解析解和频响特性表达式。
Then, the analytic solution of the geometrical nonlinear vibration system and the frequency-response properties of the actuator were analyzed by using multi-scale method.
对薄板的高次弯曲振动模式的分析及大圆盘、多波节复合弯曲超声换能器的设计提供了理论计算依据。
These provide theoretical calculation basis for analysis of high mode flexural vibration of plate and design of big round plate and multi nodal compound flexural ultrasonic transducer.
结果表明，在换能器不同振动模态下，等效并联电容电阻并非恒定值，而且实际支承工况下换能器系统工作时存在负阻尼效应。
The result shows, under different vibration mode, equivalent parallel capacitance and resistance are not constant value. There is negative damp effect in transducer system at the operating mode.
通过改变换能器前后指数型盖板的半径减编系数，得出了换能器中纵向与扭转两种振动模式同频共振的条件。
By changing the cross sectional radius decay coefficient of the exponential metal horns, the longitudinal and torsional vibrations in the transducer could resonate at the same resonance frequency.
通过修正金属细棒的长度和横截面积，实现了换能器中纵向振动与弯曲振动的同频共振。
By correcting the length of the metal slender rods, the simultaneous resonance of the longitudinal and flexural vibrations in the transducer is acquired.
该超声换能器采用纵向振动方式，其前盖板连接了一个半波长圆锥形变幅杆，以增大超声换能器输出端的振幅。
The ultrasonic transducer vibrates longitudinally, its front cover plate links up with a half wavelength circular conical horn to increase the amplitude of the output end of the ultrasonic transducer.
超磁致伸缩换能器是利用超磁致伸缩材料将电磁能转化为机械振动的一种机械装置。
The giant magnetostrictive transducer, using a giant magnetostrictive material as a main element, can transform electromagnetic energy into mechanical energy.
通过对谐振频率和振动模态的观察，验证了换能器设计参数的正确性。
Through observing of resonant and vibration mode, validate the design parameters of transducer.
本文用有限元法对凹型弯张换能器的前三个共振频率和振动方式进行计算，与测量值比较并讨论了作为水下宽带声源的优点。
The first three resonant frequencies and vibration modes of a novel flextensional transducer are calculated by finite element method, and compared with measured values.
介绍了超声波振动拔管的原理，以及超声波振动拔管换能器的设计情况。
The paper covers information regarding the working principle of the ultrasonic vibration pipe-drawing process and the design of the energy transducer as well.
提出了珩磨杆、珩磨头体均不振动的设计思想，分析计算了中心有圆柱孔的压电换能器和变幅杆，以及弯曲振动圆盘等关键部分。
Key parts including piezoelectric transducer and amplitude transformer with a cylindrical hole in the center, and flexural vibration disk are analyzed and calculated.
声波测井换能器的激发响应由换能器振动时所表现出来的动态阻抗和激发电路参数决定。
Sonic transducer response is affected by the dynamic characters of electricity and mechanics of the sonic transducer.
它是利用超声换能器的振动产生的超声波与弹性介质相互作用，从而携带大量有关材料性能的信息，这种信息以超声回波信号的形式被接收到。
By interaction between ultrasonic waves and elastic medium, it has carried much information of material, which are received in the form of ultrasonic echo signals.
为了解超声清洗等应用中常用超声换能器激励的板声源的振动特性，使用有限元方法对其进行了研究，并通过实验验证了仿真结果。
In this paper, vibration characteristics of plate sound source driven by transducer commonly used in ultrasonic cleaning are analyzed with the finite element method.
系统由超声波驱动器、换能器、变幅杆、拉丝模、拉伸机等组成，通过对黄铜丝的拉拔实验，考察了超声振动对拉拔力和丝的表面质量的影响。
Through a series of drawing experiments of brass wires, the effects of ultrasonic vibration on drawing force and surface quality of the wires were discussed.
本文利用瑞利原理，推导了新型弯曲圆盘换能器模型在边缘夹持和边缘简支两种边界条件下的位移振动分布曲线。
Using Reyleigh method, this paper deduced the vibration and displacement curve basing on the edge strengthening and edge support boundary conditions.
该换能器利用前盖板的弯曲振动与换能器的纵向振动耦合展宽频带。
A broadband underwater Tonpilz transducer was designed by using the coupling of transducer's longitudinal vibration mode and the bending vibration mode of front mass to widen its frequency band.
通过修正金属细棒的长度和横截面积，实现了换能器中纵向振动与弯曲振动的同频共振。
The resonance frequency equations for the longitudinal and flexural vibrations in the transducer are derived.
它是利用超声换能器的振动产生的超声波与弹性介质相互作用，从而携带了有关材料组织性能的信息，这种信息随同超声回波信号被接收到。
By interaction between ultrasonic waves and elastic medium, it carries much information of material, which is received in the form of ultrasonic echo signals.
利用液腔振动的谐振腔换能器是一种典型的低频、深水发射器。
Resonator transducer using fluid vibration inner chamber is a typical low-frequency and deep-submergence transmitter.
本文设计了一种多谐振腔宽带换能器，采用径向极化的压电陶瓷圆管作为激励源，激发多个液腔的振动，以多模态耦合振动的方式来拓展带宽。
Multi-resonator broadband transducer is given in this paper. The transducer driven by radially poled piezoelectric cylinder achieves broadband transmission by coupling multiple fluid vibrations modes.
超声换能器是把超声电信号转换成超声振动信号作用于人耳后的乳突骨。
The system also includes a transducer for converting the ultrasonic frequency electric signal to an ultrasonic inertial vibration.
本文研究纵向振动压电换能器的频带展宽问题。
The article study widening band of longitudinal mode piezoelectric transducers.
使用换能器使设备振动，使得设备在腔中向下移动。
A transducer is used to vibrate the device, such that it moves down the lumen.
使用换能器使设备振动，使得设备在腔中向下移动。
A transducer is used to vibrate the device, such that it moves down the lumen.
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