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.
本文主要是对用电磁声换能器，通过测量超声波幅度变化来测量铁磁性材料内部应力的方法进行实验研究。
The stress in ferromagnetic materials was studied by measuring the change of the amplitude of ultrasonic wave with electromagnetic acoustic transducers.
设计了超声波换能器的结构和信号处理电路，能够实现二重气泡监测功能。
The design of structure of ultrasonic transducer and circuit for signal disposing can realize dual air bubbles monitoring function.
本文叙述了低频超声波检测仪的设计原理，电路分析，换能器结构并讨论了在混凝土，岩体中应用。
The design principle, circuit analysis, and transducer construction of the low frequency ultrasonic tester are described. The applications to testing concretes and rocks are discussed.
文中简要叙述了换能器的工作原理与构成，给出了测量系统的设计与工作流程，并对主要的超声波发射与接收电路作了说明。
The principle and construction of the transducer are briefly presented and the working principle, design of the system as well as the main generator and detector circuit are introduced in the paper.
文中以时差法为例，分析了超声波换能器中超声射线入射角及振荡频率对测量精度的影响，给出了换能器的选择原则。
The paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy and the choose principle of ultrasonic sensor is presented.
同时介绍了超声波换能器(探头)及其等效电路。
It also introduces ultrasonic transducer and its equivalent circuit.
超声波传感器是实现声电转换的装置，所以，又称为超声波换能器。
Ultrasonic sensor is an instrument which transform sound into electricity, therefore, it is also called ultrasonic wave transducer.
由于超声波换能器的特性，超声波清洗机中的匹配电路包含两个：一个是功率匹配，一个是调谐匹配。
Since ultrasonic transducers' property, the matching circuit embodys two parts:One is power matching , the other is attune matching.
超声图像是可以通过示波器来实现的，利用医用换能器和示波器可以将超声波转换成超声图像。
It is concluded that ultrasonic image can be obtained by using medical converter to convert ultrasonic wave into ultrasonic image.
实验中，采用直探头与可变角探头作为超声波换能器做了接收宽带兰姆波信号的对比。
In the experiment, both the normal probe and variable Angle probe are used to receive broadband Lamb wave signals.
利用该方法制作的大功率超声波换能器具有规模化生产前景。
Using this method to make high power energy conversion device of ultrasonic, there is a big sweeping progress prospect.
我们介绍了一种新颖的超声波检测技术，它用宽带，非接触的电容换能器实现超声波的激发或接收。
We describe a new ultrasonic sensing technique which uses broadband and noncontact capacitive transducer to generate or receive ultrasonic waves.
通过超声波测试仪发射和接收换能器信号，输出的电压信号送入计算机的A/D卡。
We emit and receive signals fromtransducers by using Measuring Ultrasound Equipment, and then put continent voltages to the A/D card in the computer.
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.
电磁超声换能器(EMAT)是一种通过电磁耦合方法产生和接收超声波的换能器。
An electromagnetic acoustic transducer (EMAT) can produce and receive ultrasonic waves though electromagnetic coupling.
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.
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.
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.
该集成电路、换能器和柔性构件可形成以柔性子组件，该子组件被卷起以形成超声波扫描设备。
The IC, the transducer, and the flexible member can form a flexible subassembly which is rolled up to form an ultrasonic scanner.
介绍了压电陶瓷换能器产生和接收超声波的工作原理，当输入电压的频率为借振频率时，超声波在介质中产生的驻波最强。
The principle of producing and receiving ultrasonic wave with the piezoelectric ceramics transducer is introduced. Standing wave is strongest when voltage frequency is resonance.
分析压电式超声波换能器的等效电路，并由等效电路输入阻抗的导纳圆图确定了换能器的元器件参数以及谐振频率、机械品质因数和工作带宽等特征参量。
The device parameter as well as resonance frequency, mechanical quality factor and work band width were determined by the equivalent circuit input impedance admittance circle diagram.
设计超声波发生电路和超声波换能器的外壳，使超声波发生器方便携带。
And a ultrasonic generator with ultrasonic frequency and power adjustment is designed, as well as its portable shell.
该焊接组套 包括通过变幅器连接到焊头的超声波换能器。
The weld stack has an ultrasonic transducer coupled to a horn by a booster.
外壳内侧固定设置有一个超声波换能器。
本发明在紫外线水体杀菌装置中设置了螺旋状的紫外线灯管和超声波换能器，大大提高了杀菌功效。
In the ultraviolet water body sterilizer there is helix ultraviolet tube and ultrasonic transducer, improving the sterilization efficiency.
该换能器发射不平行于穿过该容器的主要流体流的超声波进入流体。
The transducer emits ultrasonic waves into the fluid that are not parallel to the primary flow of fluid through the tank.
本发明提供了一种聚乙烯管道焊缝超声波检测专用换能器。
The invention provides a transducer specialized for polyethylene pipeline weld ultrasonic wave detection, which has a simple detection method, high sensitivity and reliable detecting result.
本发明提供了一种聚乙烯管道焊缝超声波检测专用换能器。
The invention provides a transducer specialized for polyethylene pipeline weld ultrasonic wave detection, which has a simple detection method, high sensitivity and reliable detecting result.
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