基于计算机视觉的油管螺纹非接触智能检测

针对传统接触式油管螺纹参数测量方法的缺点,开发了基于计算机视觉的油管螺纹非接触智能检测系统。在简述非接触智能检测测量原理和测量系统组成的基础上,详细介绍了利用非接触智能检测系统对油管螺纹参数进行测量的方法,其中包括图像的采集及预处理,图像的锐化,螺纹边缘轮廓的检测与提取,螺纹尺寸的测量计算与对比分析。     

电控柴油机的原理及应用前景

电控柴油机以其节能、环保、易于控制等特点。获得了广泛的应用。为了更好地了解该项新产品，使其尽早在石油机械上推广使用。提升中国石油机械的品质，文章对电控柴油机的特点、结构及应用前景进行了讨论。     

锻造车间信息管理系统的开发与应用

概述了宝色钛业股份有限公司锻造厂锻造车间信息管理系统的模块数据和功能实现等特点.该系统的理论依据是最佳实践框架ITIL,使企业可高效地使用技术和现有设备,从而让既有的信息化资源发挥更大的效能.     

WKLF-102型微机控制励磁装置在大型泵站的应用

作为泵站电气设备的重要组成部分,励磁装置的性能,对同步电动机启动、运行的可靠性有着重要影响。2009年2月大型泵站-临洪西站进行了电气改造,改造中采用最新一代励磁系统———WKLF-102型微机控制励磁装置。介绍了该励磁装置的技术性能、应用以及该项应用的意义:为实现泵站工程管理的自动化、信息化、现代化打下了基础,为临洪水利枢纽的优化调度提供了技术支撑和保障。     

公路隧道计算机控制（弱电）系统抗干扰防雷电技术分析及应用

公路隧道监控系统采用计算机控制系统是中长隧道监控系统今后发展的方向,中长公路隧道的共同特点:隧道内环境恶劣,潮湿,含有腐蚀性气体,电磁干扰及各种干扰源多.就如何处理计算机控制(弱电)系统抗干扰、防雷电技术的应用进行了较详细分析.     

Encoding Material

Gramazio & Kohler's work in the faculty of Architecture and Digital Fabrication at ETH Zurich is renowned for its pioneering work with industrial robots. Here, Fabio Gramazio, Matthias Kohler and Silvan Oesterle describe how the integration of fabrication-relevant decisions into encoded designs enables the control of complex interactions between material elements and facilitates the direct generation of machine data, as epitomised by their West Fest Pavilion project. Copyright © 2010 John Wiley & Sons, Ltd.     

大口径碳化硅材料凸非球面反射镜检验技术

为了实现某大口径碳化硅材料凸非球面反射镜检验,研究了无像差点法以及补偿检验法方案,经过方案比较优选,确定选用补偿检验方案并专门设计了高精度大口径非球面补偿器,设计精度为PV：0.0082,RMS：0.0029（=0.6328nm）,采用会聚光束、使用大口径数字干涉仪进行凸非球面正面检测,采用该方法进行检验凸非球面反射镜最终检测结果为0.022（RMS）本文所述补偿器的设计方法和要求具有普遍性,设计结果也可用于同类型大口径凸非球面检验用补偿器的设计。采用该方法提高了凸非球面检测精度,并且在凸非球面镜的材料选择、结构设计、支撑方式等方面提供了更多的优化空间,为新型光学材料在凸非球面反射镜的应用铺平了道路。     

A Message-array-based Mechanism for Tracking Control Effects in Supervisory Control Software

Supervisory control is a very popular paradigm for computer-controlled systems.Knowledge and tracking the control effect of every control operation is crucial to the control tasks.In the paper,we present a message-array-based mechanism to track control effects in supervisory control software.A novel data type,message array,is designed to efficiently support this tracking mechanism.The operation algorithms,adding algorithm(AA),removing algorithm(FtA),and scheduler algorithm(SA)are proposed to operate the tracking messages in message array,which forms the special first input Ⅹ output(FIXO)strategy of message array.Automatically tracking,recording,and rolling back are the characteristics of our tracking mechanism.We implement this messagearray-based mechanism on the famous human machine interface(HMI)software platform-proficy iFix,and construct experiments to evaluate the performance of the mechanism in various cases.The results show our mechanism can be well satisfied with supervisory control software.     

计算机控制的短纤维补强弯管生产工艺

介绍了计算机控制短纤维补强弯管生产工艺的基本组成和优点，短纤维补强的基本原理；美国孟山都公司挤出口型的特征；纤维定向排列的影响因素；孟山都公司Ｓａｎｔｏｗｅｂ（木质纤维）的性能及其用于胶管的配合技术和制造工艺；配有高强度混炼螺杆的英国倪登公司挤出机的特点。指出短纤维是补强橡胶的很有发展前途的新型材料；倪登公司利用孟山都公司挤出口型开发的Ｃｏｍｐｕｔａｈｏｓｅ（计算机控制弯管挤出系统）具有显著优点；短纤维补强弯管在我国现有汽车维修上具有广阔的市场，并将逐渐为国产新车配套。     

TOOL DWELL TIME COMPUTATION IN COMPUTER-CONTROLLED SURFACING BASED ON CONSTRAINED OPTIMIZATION

Computer-controlled surfacing has been used for the improvement of the form accuracy of surfaces fabricated by precision machining. This method relies on repeated measurement and correction of the surface form error. Surface correction needs as input the dwell time of all the tool locations on the surface. Past attempts at dwell time computation involved approximations and assumptions with no guaranteed goodness of the solution. This paper proposes to formulate the problem from the perspective of constrained optimization. Practical process limitations and considerations are reflected in the formulation of cost terms and constraints. Commercial numerical packages are available for solving such optimization problem.