查询词典 transducer

After a description of the basic principle of vertical ultrasonic guided wave, this paper has made an analysis on the variation of the displacement offset of vertical mode variant with frequency; it has also presented an approach by which a pectinate symmetrical transducer be used to effectively detect pipeline flaws.

在纵向超声导波基本原理的基础上，分析了两种纵向模式位移分量随频率的变化而变化的情况，给出了一种梳状对称换能器对管道缺陷的有效检测。

Our main products are piezo film sensor and pressure transducer designed by USA.

主要生产和销售由美国设计的各种压电薄膜传感器及压力传感器。

In this paper,a method for measuring acoustic power of plane piston transducer based on calorimetry is presented.

介绍了一种基于量热法的平面换能器声功率测量的方法。

Any flows greater than the capacity of the low flow diversion pipeline then flow into the park.The authors present an e'ectrical method by use of the pressure dif- ference transducer with the pitot tube which is installed in the pens- tock of prototype turbine to search for the law of dynamic flow unde?

作者提出一种装置在原型水轮机压力引水管道上的皮托管经差压应变传感器的电测方法，用以测量水轮机过渡过程中的动态流量变化规律；采用这种方法，首先在三座水电站中对原型水轮机各种过渡过程的动态流量变化规律进行了测量，并获得了较为满意的结果。

In the experiment, some testing measures are adopted to ensure geting reliable results. For example: coupling liquid is used between the transducer and the specimen to ensure efficient transmission. In order to reduce the system nonlinearity, the loading power of the amplifier is enlarged.

实验过程中还采取了一系列确保超声非线性测量结果可靠性的措施，如：为了减少超声传播过程中的衰减，在压电探头和试样的接触表面加入耦合剂；为了降低实验系统本身产生的非线性，加大了放大器的加载功率。

The primary axis measured parameter is an angular position read by a flexible position transducer that is mounted in a stainless tube with a radius of three feet.

主坐标轴测量参数是一个角位置由一个灵活的位置传感器是在一个有三英尺半径不锈钢管式阅读。

A precision current transducer connecting in series with high voltage capacitors, which can reflect the variation of primary voltage by measuring the current flowing through capacitors, is proposed.

提出了一种高压电容器串接精密电流传感器，通过测量流经电容器的电流来反映一次电压变化的方法。

The error is mainly the system error of the experiment, and the velocity measurement error is the identification of the first arrival of the primary wave and the attenuation measurement is the coupling between the sample and transducer.

对误差分析表明，本文研究中的误差主要来自于实验系统误差，其中速度观测误差来自于对首波初至点的确定，声衰减观测的误差来源于探头与样品之间的耦合状况。

The choice principle of the parameters of ultrasonic transducer is studied too.

对换能器的各参数和选择进行了讨论，给出了换能器选择的原则。

Here we show that regulated intramembrane proteolysis activates EpCAM as a mitogenic signal transducer in vitro and in vivo.

在本研究中，我们发现离体和在体条件下，受调节的膜内蛋白水解可激活EpCAM，使其成为有丝分裂信号转导物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐