ultrasonic transducer

In this paper, the thickness vibration of the piezoelectric ceramic stack consisting of a number of identical piezoelectric ceramic thin rings is analyzed and its electro-mechanical equivalent circuit is obtained. The resonance frequency equation for the sandwich piezoelectric ceramic ultrasonic transducer in thickness vibration is derived.

对压电陶瓷晶堆的厚度振动进行了分析，得到了机电等效电路，推导了共振频率方程。

The system of the ultrasonic transducer is the key component of the bonding equipment in the thermosonic bonding system.

在热超声键合系统中，超声换能系统是键合装备的核心部分。

The dynamics of ultrasonic transducer for thermosonic flip chip bonding is investigated.

研究了热超声倒装键合设备的核心执行机构——换能系统的动力学特性.

Third, ultrasonic velocity was compensated through temperature transducer and the precision was ensured.

三是利用温度传感器实时检测环境温度以补偿温度引起的声速变化，保证了检测精度；

METHODS: The ultrasonic transducer is located by using single chip computer and absolution position coder.

方法: 应用单片计算机技术及绝对位置编码器对超声传感器进行定位.

Method of quality discriminance and realization on piezoelectric ultrasonic transducer assembly Automatic exchange for voltage and current output.

夹心式压电换能器装配质量判别方法与实现仪器电压、出电流信号能够自动转换。

Methods ATL HDI 3000 ultrasonic system with C 4 2 superwide frequency transducer was available. Fifty eight cases were examined by 3D CPA and classified by TNM stage in order to assess prognostic value of 3D CPA for PLC.

方法采用ATL HDI3000超声仪，C42超宽频探头，对58例肝癌进行三维彩色血管能量成像（3D CPA）检查，并对其进行TNM分期，以评价3D CPA在肝癌预后评估中的价值。

Development of Piezoelectric Ceramic Transducer for Ultrasonic Tooth Cleaner

超声洁牙器压电陶瓷换能器的研制

On-line detection of power ultrasonic transducer clamping capacitance

功率超声换能器夹持电容的在线检测的研究

This article introduces many kinds of ultrasonic transducers, transducer focus, and digital beam forming technology.

概述了各种超声医学成像换能器现状, 以及换能器聚焦和数字波束成像技术.

A procedure for high-power-testing ultrasonic transducer to better guarantee the cleaning quality of an ultrasonic cleaner

一种保证超声清洗机性能的换能器大功率测试方法

Development and Application of Triad Ultrasonic Transducer

多晶片超声探头的研制与应用

Electromagnetic acoustic transducer ( EMAT ) is a new ultrasonic transmitting and receiving device.

电磁 超声换能器 是一种新型的超声波发射接收装置.

the modern medical ultrasonic diagnostic equipment is the product of the latest modern medical ultrasonic fundamental theory research, the new type piezoelectric, materials and ultrasonic transducer, computer processing, acoustic imaging technology and information transmission technology.

现代医学超声诊断仪已是最新医学超声基础理论研究、新型压电材料和超声换能器研制、计算机处理、声成像技术与信息传输技术相结合的产物。

Methods: ATL HDI 5000 ultrasonic system with L 12 5 superwide frequency transducer was available.

方法: 采用ATLHDI5000超声诊断仪,L125超宽频探头.

By modelling a π/ 4 angle for an electrostatic ultrasonic transducer with a grooved backplate, a method is proposed. And calculating its capacitance, the outcome is very close to the experimentation result.

通过建立π/4角两平板电容器模型，提出V形槽静电传感器电容值的定量计算方法，得到与试验相接近的结果。

The characteristics of high power ultrasonic transducer under loads

A4负载条件下功率换能器的特性研究

Ultrasonic cleaning machines is mainly made up of ultrasonic generator and ultrasonic transducer.

超声波清洗机主要由超声波发生器和超声波换能器组成，本文重点介绍超声波发生器。

The piezoelectric transducer is widely used in ultrasonic cleaning machine and high-power industry cleaning devices.

它广泛应用于超声波清洗机及工业用大功率清洗设备。

The hardware design includes the selection of ultrasonic transducer and sampling unit of environmental temperature, ultrasonic emitting and driving unit, receiving and back wave testing unit, main controlling unit and communication unit.

系统的硬件设计包括超声波传感器的选择以及环境温度采集单元、超声波发射及驱动单元、超声波接收及回波检测单元、主要控制单元和通信单元；

Using distributed PZT transducer, ultrasonic guided waves are generated and received in a pipe.

采用分布式PZT传感器在管中激励和接收超声导波。

The paper focuses on the immersion line-focusing ultrasonic transducer with cylinder curved acoustic lens used in intelligent pig, establishes a mathematical model of acoustic fields, calculates its acoustic field distribution and focal length.

论文针对智能猪用柱形曲面声透镜水浸式线聚焦探头，建立了其声场模型，并对其轴线声场和焦距进行了数值模拟。

Measurement of acoustic field radiated by low frequency power ultrasonic transducer with laser-interferometer

低频功率超声换能器辐射声场的激光干涉检测

Study on detect system of intelligent land mine based on the air ultrasonic transducer

基于气介式声传感器智能雷探测系统研究