控制部件

So we designed a adaptive synchronizing controller based on hereinbefore hardware environment: first a small magnitude reference signal r is outputted to system through the signal card (to ensure that the vibrating system works in a linear state), and this signal is sent to the moving coil of vibrator through the power amplifier, so vibration is produced through electromagnetic induction. Secondly the vibration signal can feedback to the data acquiring card in the servo system through the acceleration sensor on the Vibroseis reactor M〓 and the base-plate M〓, then the computer can get the current vibrating state y〓 of the coil of vibrator according to the feedback information from the data acquiring card, and give a real time comparing between the current state y〓 and the reference output y〓 of the set-in reference model with current reference input being r , then regulates the correlative controlling parameters according to the error e〓=y〓-y〓 till y〓→y〓, finally normal signal sweeping begins with a certain phase fixed. Meanwhile a synchronization signal for seismic signal record is sent to seismograph from synchronization signal outputting component in the Vibroseis system to perform the controlling process of synchronization of sweeping phases.

为此，我们基于以上的硬件环境设计了一个自适应同步控制器：首先通过信号发生卡对系统输出小幅度的参考信号r(从而保证振动系统工作处于线性状态)，信号通过前置放大器、功率放大器等送到激震器动圈，并通过电磁感应产生振动，振动信号通过可控震源激震器反应块M〓和基板M〓上的加速度传感器反馈给伺服系统中的数据采集卡，工控计算机根据采集卡的反馈信息，获取当前激震器动圈的振动状态y〓，并实时地将该状态与内置的参考模型在当前参考输入r下的参考输出y〓进行辨识，再将两者输出误差e〓＝y〓-y〓对系统的有关控制参数进行调整，直至y〓→y〓，最后在经过某一固定的相位后，开始信号的正常扫描过程，与此同时，由可控震源系统的同步信号输出部件向地震仪送出一地震信号记录同步信号，进而完成扫描相位同步控制过程。

Based on the transfinite interpolation theory, an improved algebraic grid generation method is presented in this paper. Our improvements of existing algebraic grid generation method include:(1) orthogonality control, which greatly improves grid orthogonality adapted to viscous flow calculation;(2) weighted average smoothing, which efficiently handles with grid intersection due to concave corner existence;(3) normal vector control, which adjusts grid smoothing near convex corner.

基于无限插值理论，引入本文提出的网格正交控制、物面法向量控制、加权平均光顺措施，给出了一种改进的空间网格生成方法，有效克服了传统无限插值网格生成方法在复杂外形网格生成方面的缺陷，有效改善了网格的法向疏密性、贴体性及周向网格的均匀性，对真实飞行器部件网格生成非常迅速。

A turbojet engine and its main fuel control system with hydro-mechanical regulator are studied. The rotational speed control system is modeled according to the analysis of the engine control program.

以某型涡喷发动机及其主燃油系统的机械液压式调节器为研究对象，在考虑其控制规律的前提下，建立了转速控制系统及其各部件的数学模型。

Product research and development in the area has strong, in control of the production process has a strict control system, and products using advanced electronic components, therefore, Avis burglar alarm products in the market has strong competitiveness .

公司在产品研制开发方面有很强的实力，在生产过程控制方面拥有一套严格的控制体系，产品全部采用先进的电子部件，因此，安飞防盗报警器产品在市场上有很强的竞争力。

Product research and development company has strong strength and control in the production process has a strict control system, together with the products of advanced electronic components, therefore, anti-theft alarm Avis products in the market have a strong competitive force.

公司在产品研制开发方面有很强的实力，在生产过程控制方面拥有一套严格的控制体系，加上产品都采用先进的电子部件，因此，安飞防盗报警产品在市场上有很强的竞争力。

Then this dissertation proposes methodologies and algorithms through which a three-axis NC cutter path can be directly generated from massive data points obtained non-contact measuring devices. At the beginning, a Z-map model is employed to set up mesh points with the principle of Convolution Kernel and Blobby algorithm.

在认真分析闭环伺服系统基本框架的基础上，建立了伺服驱动系统中伺服电机、伺服驱动器等主要部件的数学模型，研究了位置控制器的硬件结构和位置伺服控制策略；通过深入剖析Windows系统的体系结构，提出Windows环境下基于虚拟设备驱动程序的伺服系统稳定控制。

This review should determine whether NHTSA carried a bias against regulating nonmechanical vehicle components, had been excessively influenced by automobile manufacturers in regulating electronic control mechanisms, and/or lacked the resources to adequately investigate electronic control mechanisms,' Sen.

洛克菲勒在写给运输部总检查长斯哥维尔的信中说，这一审查应确定美国国家公路交通安全管理局是否对监管车辆非机械部件心存偏见，是否在管理电子控制系统方面受到汽车生产商的过度影响，以及是否缺乏对电子控制系统进行充分调查的资源。

This review should determine whether NHTSA carried a bias against regulating nonmechanical vehicle components, had been excessively influenced by automobile manufacturers in regulating electronic control mechanisms, and/or lacked the resources to adequately investigate electronic control mechanisms,' Sen. Jay Rockefeller said in a letter to Calvin Scovel III, the Department of Transportation's inspector general.

洛克菲勒(Jay Rockefeller，西弗吉尼亚州民主党参议员)在写给运输部总检查长斯哥维尔的信中说，这一审查应确定美国国家公路交通安全管理局是否对监管车辆非机械部件心存偏见，是否在管理电子控制系统方面受到汽车生产商的过度影响，以及是否缺乏对电子控制系统进行充分调查的资源。

The company's new automated tank manufacturing line; paint and parts fabrication equipment, quality testing stations, automatic press controls and forming machines have helped to control product manufacturing costs and improve overall quality.

公司新式自动化容器制造生产线，喷漆和部件安装设备，质量检验站，自动化锻压控制系统和成型设备，都能够有效控制产品制造成本、提高综合质量。

Describes the experience in making of brake-valves for double-room vacuum gas quenching furnace especially the working principle of its sealings,function transmission and the technological processes of its key components(valve body,linkage and valve plate),with a force analysis made to the linkage in detail.

介绍了真空热处理技术的优点，总结了双室真空气淬炉中附件&闸阀&的制造经验，阐述了闸阀的密封工作原理、作用、传动以及关键部件的加工制造工艺，同时对连杆机构做了详细的受力分析，并指出&闸阀&制造过程工艺控制的重要性，只有严格控制加工工艺流程才能保证&闸阀&的制造精度，从而满足整台设备的技术参数。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。