测量与控制

So in this paper based on the characteristics and the optimum state theory of the vehicle, some kinds of control schemes are compared and discussed, and the fuzzy PID control scheme is adopted at last. The relation between air-cushion pressure and fan rotational speed on the optimum driving state is studied. The cushion pressure is used as controlled variable and the fan revolution is used as regulated variable. And transducer and fan motor are actuators.Based on the structure and operating properties of half-tracked air-cushion vehicle, the control system scheme and structure are presented. A control scheme using the self-tuning PID fuzzy logical controller is adopted. Fuzzy rules are set up and some researches have been done for fuzzy tuning method. At the same time the real-time measurement scheme by computer control is proposed, and electric circuits are designed. In the control system of half-tracked air-cushion vehicle cushion pressure P〓 is used as controlled variable and the fan speed n〓 as regulated variable.

因此本文以半履带式气垫车的特性和最佳工作状态理论为指导，通过对各种控制方法的比较与探讨，提出采用模糊PID控制方案，并且研究了在最佳工作状态下垫压及风机转速的关系，提出气垫压力作为控制参数，变频器和风机电机为执行机构，风机转速为调节量；主要进行了自整定模糊PID控制器的设计，研究了自整定PID模糊控制器的实现方法，编制了模糊控制规则，制定了模糊控制参数查询表，并分析了影响自整定模糊控制器相关的影响因素，确定了模糊控制表；为了实现半履带式气垫车的自动控制，还提出了计算机模糊控制系统的原理与结构，设计了相应的测量电路与控制软件。

It introduces Survey control network pattern choice and its arrangement, cross river water level datum survey, single shaft orientation during pipe jacking for cross river cable tunnel at FuXing Road East, as well as design and application of Xiong Ying pipe jacking automatic survey guiding system applied in vertical curvature pipe jacking survey.

提 要：本文介绍了复兴东路220kV电缆越江隧道顶管工程施工测量中控制网的选形与布设、跨江水准测量、单井定向，以及雄鹰顶管自动测量引导系统在竖曲线顶管测量中的设计与应用，对类似作业及相应的工业软件开发极具参考价值。

To measure the fracture toughness and crack propagation parameters of Q235 steel by fatigue experiment from the point of energy, J integral and the other method are used in measuring.

2从能量的观点出发，通过结构疲劳实验和标准实验，分别用柔度法和J积分测量法测量了Q235钢的断裂韧性值，同时，测量了Q235钢与疲劳裂纹扩展速率相关的两个参数，为基于Q235钢的机械承载结构裂纹的珍断与控制打下了坚实的基础。

Some possible applications of wide-area measurement system in power system are gathered up, including applications in static analysis, recording dynamic procedures of the whole power network and post-contingency analysis, identifying and calibrating the dynamic model of power system, transient stability prediction and control, voltage and frequency stability monitoring and control, analyzing and damping the low frequency oscillation, global feedback control, fault location and parameter measurement o...

综述了广域测量系统(Wide-Area Measurement System，WAMS)在电力系统稳态分析、全网动态过程记录和事后分析、电力系统动态模型辨识和模型校正、暂态稳定预测及控制、电压和频率稳定监视及控制、低频振荡分析及抑制、全局反馈控制、故障定位及线路参数测量等方面的应用。通过这些应用可以看到，WAMS给电力系统分析与控制提供了新的视角和解决方法，值得深入研究。

In the first, the background of this dissertation, the he status which helicopter blade dynamic balance experimental platform system design and using are introduced, helicopter blade dynamic balance experimental platform system is not designed in our country, so in this Dissertation, the advanced experience is accepted and some innovative methods also are used in the system design.

此论文通过借鉴国内外对直升机旋翼动平衡试验台系统设计的经验，确定采用当今较新与较成熟的技术构建了集数据采集与控制为一体的试验控制系统来满足整个动平衡试验的要求。另外还对直升机旋翼动平衡试验台系统方案设计中各分系统作了简单介绍，并通过和以往系统比较分析，在借鉴前人经验的基础上进行了创新。此论文主要介绍了直升机旋翼共锥度测量分系统的设计与实现。

On ultra precision lathe, author propose the principle of error in-process measurement and compensation of cylinder, end and contour, and use adjusted straightedge and sensor to build error on-line measurement and compensation control system of end turning.

研究了基于模糊数和插值原理的模糊控制算法，并用该算法实现了压电陶瓷微动刀架伺服系统的闭环控制，使其控制精度达到了±0.01μm；在超精密车床上，提出了圆柱面、端面和轮廓加工的误差在线测量与补偿原理，并利用标定的直尺和传感器建立了端面车削误差在线测量和补偿控制系统。

Methods:One hundred and six disarticulated human verebrae(C3～C7)were evaluated with computed tomography to determine vertebral bone mineral density.Pedicle screws and lateral mass screws were inserted to the left and right at random.Screws were loaded either axially strictly longitudinal to failure or in a coronal plane strictly perpendicular to the logitudinal axis,the strengths and displacements were recorded.

方法解离C3～C7骨块120个随机分为两组，测量每个椎体骨的松质骨密度，同一节段椎体随机配对置入椎弓根和侧块螺钉，在位移控制下分别测量位移控制下的平均最大拔出阻力和压力控制下的切向弹性与永久位移。

To introduce the mould level measurement and automatic control for the thin slab continuous caster in Lanzhou Iron and Steel Plant, put emphasis on the working principle, technical features, installation and maintenance of the laser measurement system and simply describe the automatic control of the mould level.

介绍兰州钢厂薄板坯连铸结晶器液位测量与自动控制，重点介绍激光法测量的工作原理、技术特点、安装和维护，并对液位自动控制作了简要介绍。

Is a professional electrical test and measurement and control equipment development, manufacturing and marketing high-tech enterprise, main products has: DC wire tester, AC wire tester, testing machine swings, sudden pull test machine, static tensile testing machine, aging testing machine, cable testing machine hoists a full range of wire and cable test equipment and other products.

东莞线友科技有限公司是一家专业从事电气测试测量与控制设备开发、生产和销售的高科技企业，主要产品有：DC线材测试仪、AC线材测试仪、摇摆试验机、突拉试验机、静态拉力试验机、老化试验机、电线吊重试验机全系列的电线电缆试验设备等产品。

The synchronous measurement scheme of combining the wire encryption control survey and strip topography mapping was taken in the course of the engineering survey for the Xilongchi Pumped Storage Power Station , located in Shanxi Province.

在山西西龙池抽水蓄能电站施工测量中，采取导线加密控制测量和带状地形图测绘的同步测量方案，利用全站仪开展导线控制测量与碎部测量同步进行，最后用微机进行测量后的数据处理工作。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。