thickness transducer

The thickness of the transducer membrane is in micron scale, so we should use theory of strain gradient to evaluate the static deformation.

换能器厚度达到了微米级别，在研究薄膜应变时要应用应变梯度理论。

AX-100L Slab Thickness Machine is adopted gantry linkage structure, autofeed driven by trolly screw mandrel and America EMERSON transducer to adjust the speed steplessly.

AX-100L大板定厚机采用龙门式连体结构，台车丝杆驱动自动走刀，并采用美国爱默生变频器可进行无极高速。

According to the transmission line of Mason equivalent circuit theory, the metallic membrane plating structure of piezoelectric transducer is determinated. Then, the length, width and thickness of piezoelectric transducer and acousto-electro-optic crystal are calculated.

然后利用传输线的玛森等效电路理论计算并确定了压电换能器的最佳镀膜结构，以及换能器的长度、宽度和厚度，和声电光晶体的长度、宽度和厚度。

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 study of the impulse response of thickness vibrating transducer

厚度振动换能器脉冲响应的研究

It was found that the Cymbal transducer showed more axial displacement with less end cap thickness and Young's modulus, higher electric field on ceramic disk, bigger cavity diameter, and an appropriate cavity height.

结果表明：当盒盖厚度相对较小、盒盖弹性模量较小，陶瓷的厚度相对较小及较大的场强，空腔的半径相对较大，空腔的高度稍大于盒盖的厚度的时候，Cymbal驱动器具有较大纵向位移。

Instrument for Glass-thickness Measurement by Capacitance Transducer

电容传感式玻璃厚度测量仪

To replace the expensive β ray thickness meter the coating thickness is controlled by using photoelectric transducer.

介绍采用光电传感器代替昂贵的β射线测厚仪，实现涂层厚度控制；

We find that the waveform and the pulse width of the ultrasonic pulse are determined by the thickness of the PVDF piezoelectric film transducer, the falling time of the step-function voltage, the transducer backing and the shape of the acoustic propagation medium.

实验结果表明，声脉冲的波形和脉冲宽度取决于PVDF压电膜的厚度，阶跃电压的下降沿宽度，以及背衬材料和声传播媒质的形状等多个因素。

This paper has been introduced the imcomplete superiority that layer thickness is mined coal of the checkout of application sound wave, and has gone on research, and has selected the best scheme to design and the application of imcomplete mining coal a layer thickness checkout apparatus transducer.

文介绍了应用声波检测残采煤层厚度的优越性，对残采煤层厚度检测仪换能器的设计和应用进行了研究，选择了最佳方案。