动电

The result makes clear, below the oily source pressure of 5MPa, when both structure parameter is identical, differential type is electro-hydraulic carry out implement answer speed and quantity of the biggest displacement on average to be bedspring restoration type about electro-hydraulic carry out implement 2 times.

结果表明，在5MPa的油源压力下，当两者结构参数完全相同时，差动式电液执行器的平均响应速度及最大位移量约为弹簧复位式电液执行器的2倍。

Taking into account the characteristic of the high-voltage transmission line, this paper discusses the basic principle of the eddy current testing method.

结合高压输电线的特点，在论述了电涡流检测方法的基本原理之后，进一步论述了差动式检测线圈的电涡流检测原理与方法。

In the process of electro-membrane filtration, the applied operation condition and membrane do not have significant electroosmosis effect through related experiment. Under the operation of 98KPa pressure, only 6% flux was increased, which showed the increase of flux in the applied electric field process mainly from electrophoresis effect. The effect of dye filtration by membrane is mostly influenced by the basic nature of dye, including size of molecular weight, electrophoresis motility and the adsorbability of dye to membrane.

在外加电场薄膜程序中，所用的操作条件以及所使用的薄膜，经电渗透实验显示电渗透的效应不明显，而在98KPa压力操作下，也仅增加6%的通量贡献，显示外加电场程序通量之提升主要来自电泳作用；薄膜过滤染料的效果主要受到染料基本性质的影响，包括分子量大小、电泳动能力与染料对薄膜的吸附能力。

On the basis of the analysis and comparison of some sensors, Eddy Current Sensor is selected, and its equivalent circuit, strength and depth of the eddy current, radial distribution of the current, axile intensity of the magnetic inductorium are all analyzed. The processing circuit of sensors signal is designed. Because of coupling problem of the sensors, differential measurement of sensor is applied.

在分析比较各种传感器特性的基础上，选择了电涡流传感器作为转子位移的检测元件；分析了电涡流传感器的等效电路、涡流强度和深度、涡流的径向分布、线圈轴上的磁感应强度；设计了传感器的信号处理电路；对于传感器始终存在的偏置耦合问题，提出了传感器差动测量的方法。

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公司主要产品为：电工、电子、模电、数电、电力拖动、机床、机电、数字语言学习系统；多媒体电化教室；计算机多媒体教学网；家电综合实验设备及生理化成套设备；全透明汽车教学模型；汽车驾驶模拟器，等七大系列一百多个品种、它是职技校、大专院校的实验室必备之产品，产品投放市场以来，深受教育部门、各类学校的欢迎，本企业的产品已成为科教界首选产品。

Piezo Actuators are key components of piezoelectric fuel injection systems in diesel and gasoline engines.

压电致动器是在柴油和汽油发动机中压电燃料注入系统的重要元件。

Based on the 4 nodes element used for piezoelectric composite laminate plate and finite element method,and using sensitivities of structural displacements with respect to actuator voltages,the static deformation control considering smoothness requirement for platelike adaptive structure with piezoelectric material layers as actuators is studied in this paper.

基于四节点压电复合材料层合板单元和相应有限元分析方法，利用结构位移对电压的灵敏度，对以压电材料为作动器的板壳自适应结构，进行了考虑平整性要求的静力变形控制。

Using the perturbation method and Stroh's formula, a nonideal crack, which is mathematically sharp and the opposing crack faces still have a gap in which a stiffless dielectric fills, the two-field problem is reduced to a standard Riemann-Hilbert problem. The internal electric field distribution is obtained by solving a singular integral equation, and then the full field both inside and outside the crack is obtained and the electro-mechanical intensity factors to the first order of accuracy are given.

采用摄动方法对裂尖理想尖锐而裂纹面又具有一定张开的非理想裂纹进行分析，裂隙内含有无刚度的各向同性电介质，利用Stroh公式，将二域问题化为标准的Riemann-Hilbert问题，裂隙内电场分布通过解一个奇异积分方程获得，从而得到裂纹内外的力电全场分布，进而给出一阶精度下的力电强度因子的表达式。

Electric hydraulic valve is equipped with type DYT electric hydraulic draw stem; it pushes the rocker to drive axle and plate and switch flow direction of medium and meets the requirement of working conditions.

电液动三，四通溜子，配用 DYT 型电液推杆，推动摇杆带动阀轴，分料板即可完成介质流向的切换，满足工况的需要。

High mechanical-electrical transformability and excellent controllability set ferroelectrics in the center-stage of functional materials.

铁电陶瓷已经被广泛应于致动器，微定位器等机敏器件。随着铁电陶瓷日益广泛的应用，其可靠性问题变得尤为突出与重要。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。