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.
缺点为效率较压电换能器低，原材料镍片价格贵。
The disadvantage is more efficient than the piezoelectric transducer is low, raw material price expensive nickel plate.
缺点为效率较压电换能器低，原材料镍片价格贵。
Thedisadvantages are more efficient than the piezoelectric transducer is low, the price of your raw material nickel plate.
再由压电方程得出与试样直接相耦合的压电换能器的输出信号。
The piezoelectric equation is then used to obtain the output signal of the transducer coupled to the sample.
本文介绍根据压电效应原理，对纵向压电换能器进行预应力控制。
This paper introduces how to control the prestress of the longitudinal piezoelectric transducer according to the principle of the piezoelectric effects.
本文论述了作为这种模拟震源的脉冲压电换能器的表面换能原理；
The theory on the superficial function of impulse piezoelectric transducer of the said simulation source is discussed;
动态检测结果表明，该方法可以较好地检测出压电换能器的谐振频率。
The result of dynamic detection indicates that this method is able to detect the resonant frequency of the piezoelectric transducer.
其中超声发生器包括有压电换能器、圆锥形变幅杆、安装座和锯片接头。
The ultrasonic generator comprises a piezoelectric energy exchanger, a conical amplitude transformer, a mounting seat and a saw blade joint.
该文讨论了压电换能器的各种匹配电路及其匹配关系并进行了相关实验；
This paper discussed the matching circuit of ultrasonic transducer and the matching relationship , and we have done some relevant experiment;
同时，考虑国内压电换能器的加工技术，提出基于超声波技术除冰的最优方案。
Simultaneously, taking domestic fabrication technology of piezoelectric actuators into account, the optimal de-icing scheme based on ultrasonic technology was proposed.
同时指出光纤水听器与传统压电换能器在性能指标、信号传输和处理等方面的差异。
At the meantime, the differences in performances, signal transmission and processing and other aspects between optic fiber hydrophone and traditional piezoelectric transducer have been given.
该方法对超声波电源实现自动识别、跟踪以及动态匹配压电换能器谐振频率等具有非常重要的参考作用。
The method is significant to automatic identifying and tracking ultrasonic power supply, and dynamic matching piezoelectric transducer resonant frequency.
本文用直接外加法向应力和用力矩板手加应力两种方法测量在不同压力下压电换能器材料的应力与应变关系。
In this work, the direct normal stress and the stress produced with torque wrench were applied on such transducers.
本文主要通过拓宽换能器频带宽度的机理出发，研制打孔型宽频带夹心式压电换能器，并对其拓宽频带宽度的效果进行分析。
Developing the wide-band transducer with holes based on the analysis of mechanism about the way of broaden the bandwidth, and analyzes the impact of broadening the bandwidth.
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.
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.
在这个例子中，压电式受弯换能器提供电能。
In this case, the power is supplied by piezoelectric flexural transducers.
多年以来，压电式换能器的研究者们一直都有新型设计的想法，但应用‘对比相减式’的加工流程实际上很难能把这样的构想变为现实，而‘对比添加式’很可能会使这种困顿得到改善。
Although researchers have had new transducer designs in mind for years, it has been impractical to construct them subtractively. Additive manufacturing could change that.
压电陶瓷具有许多优点，因而广泛应用于换能器中。
Piezoelectric ceramics have been widely used in transducers because of their many advantages.
特别对于水声换能器应用而言，压电陶瓷在大功率高静压力下的性能是人们十分关心的。
The properties of piezoelectric ceramics at high electric power and hydrostatic pressure are concerned for the application in underwater acoustic transducers.
本文对双向电脉冲激励压电陶瓷超声换能器进行实验研究。
Bidirectional electric pulse excitation of piezoelectric transducers for pulsed ultrasonic wave is investigated in this paper.
在考虑晶体的压电性和各向异性基础上，从声的波动理论出发，对叉指换能器在液体-压电晶片界面上兰姆波的激发理论及其性质进行了研究。
To solve these problems, the properties of Lamb wave excited by interdigital transducer in the piezoelectric substrate covered by liquid were studied based on its piezoelectricity and anisotropy.
利用径向极化的压电圆管制作了一种便携式宽频带换能器。
A portable broadband transducer using the radially polarized piezoelectric cylindrical tube has been designed and fabricated.
将金属与压电陶瓷物理复合的钹式换能器具有体积小的优点，使得其对于低频换能器设计具有重要意义。
Cymbal transducer as a result of composite of metal and piezoelectric ceramic has the less volume which is significant in application to low frequency transducer.
本文描述了地震物理模型中使用的几种宽带换能器的主要压电参数和技术指标。
In this paper, the chief piezoelectric parameters and the technical specifications of some different Rinds of the broad-band transducers for seismic modelling were described.
该换能器由前后金属盖板、两组周向极化压电晶堆及电负载组成。
The transducer consists of back metal cylinder, front cylinder , two groups of tangentially polarized piezoelectric ceramic piles and electric load.
通过改变夹心式换能器压电晶片的堆放位置及组数，使超声清洗换能器具有两个明显的谐振峰。
By changing the stack position and quantity of the piezoelectricity chip of piezoelectric ceramic sandwich transducer we can make the washing transducer bear two obvious resonance peaks.
在分析对比了两种换能器的优劣后，选择了夹心式压电超声换能器，并进行结构设计。
The sandwich piezoelectric transducer is selected after the capability of the two types transducer is analyzed, and then the structure of transducer is designed.
它以通常的平板圆形压电晶片作为换能器振子，加上曲面背衬使整个系统达到多共振状态。
It is mainly composed of a PZT plate acting as an oscillator and a curved back liner in order to make the system a state of multi-resonance.
它以通常的平板圆形压电晶片作为换能器振子，加上曲面背衬使整个系统达到多共振状态。
It is mainly composed of a PZT plate acting as an oscillator and a curved back liner in order to make the system a state of multi-resonance.
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