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通过对ABBStressometer板形控制系统的检测及控制原理分析,从系统的硬件构成到软件实现,较详细地介绍了ABB公司新一代板形检测和控制系统,并对该系统的一些特点进行了讨论。 相似文献
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1.第三代表面检测系统 德国Parsytec公司的第三代表面检测系统是将计算机、摄像机等与新的软件接口结合起来进行有效的表面检测的系统,该系统的使用为提高表面的质量提供了保证,并提高了产量。 相似文献
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涡流式结晶器钢水液位检测及应用 总被引:1,自引:0,他引:1
本文介绍了结晶器液位检测系统的原理及应用,它可对0~150mm的钢水液位进行检测,线性输出4~20mA隔离信号,具有结晶器振动自动跟踪滤波功能和完善的保护及报警功能。该系统还可以用于其它熔态金属的液位检测。 相似文献
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本文介绍了结晶器液位检测系统的原理及应用,它可对0-150mm的钢水液位进行检测,线性输出4-20mA隔离信号,具有结晶器振动自动跟踪滤波功能和完善的保护及报警功能。该系统还可以用于其它熔态金属的液位检测。 相似文献
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文章介绍了《物理检测数据管理系统》的开发设计过程以及该软件的功能和特点,该系统的应用可使物理检测数据实现科学化和规范化管理。 相似文献
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文章介绍了《物理检测数据管理系统》的开发设计过程及该软件的功能和特点,该系统的应用可命名物理检测数据实现科学化和规范化管理。 相似文献
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介绍了矿井提升机计算机控制系统的设计,采用工业控制计算机和可编程控制器两级计算机控制系统。DSP开发数字深度指示系统,对罐笼深度进行检测,并采用同步点校正和逐点速度监测。该系统为矿井提升机的安全和高效运行提供了可靠的保障,从而保证了矿山的安全生产。 相似文献
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The German health-care system is characterized by a statutory health insurance based on the principle of social solidarity. Nonprofit sickness funds and regional associations of physicians are the central components of the German system. The historical development of the system for more than 100 years has been characterized by negotiations, rather than confrontation, among physicians, patients, and insurance carriers. With the increasing sophistication of modern medicine, medical expenditure is rising, and great demands are facing the health-care systems of the industrialized world. The hope is that the German system will be able to preserve the principle of solidarity and remain a one-tier health-care system rather than allow health care to be viewed as essentially a private consumption good, in which case availability and quality are allowed to vary with family income. As a means to achieve this goal, the autonomy of the sickness funds and regional associations of physicians will be increased substantially, and the governmental authority will be decreased. Strengthening of autonomy must be accompanied by incentives for self-responsibility and self-participation of Germany's citizens. 相似文献
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M. A. Turchanin P. G. Agraval A. R. Abdulov 《Powder Metallurgy and Metal Ceramics》2008,47(5-6):344-360
The CALPHAD method is used for the thermodynamic assessment of the Cu-Ti system that bounds the ternary Cu-Ti-Zr system, which is capable of forming amorphous alloys. The self-consistent parameters of thermodynamic models of the phases are obtained from data on the phase equilibria and thermodynamic properties of liquid alloys and intermetallic compounds. The Gibbs energy of the liquid phase is described using the associated ideal solution model. To describe the thermodynamic properties of the Cu4Ti and CuTi intermetallic compounds with homogeneity range, sublattice models are used. The calculated phase diagram of the system and the thermodynamic properties of the phases are in good agreement with experimental data. 相似文献
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The megakaryocytic apparatus of bone marrow and platelets are discussed as a common system whose physiological purpose is to ensure hemostasis when the integrity of the vascular wall is impaired. The principle of operation of the megakaryocyte-platelet system is synthesis, accumulation, and organization of a potent hemostatic potential, its distribution and dispersal along the vascular bed, if inactive, and its new formation at the moment of and at the site of required hemostasis. At the same time in its early and late major functional performance, the elements of the system are stable-at the early stages of megakaryocytopoiesis to the extent to the appearance of a promegakaryocyte and at the stage of platelet hemostatic cork. At the intermediate stages-that of the mature megakaryocyte divided by demarcation membranes and that of reversible aggregation of platelets which have not lost their individuality, the elements of the system are in an unstable state that is ready for disintegration or in a state that does not exclude its possibilities. In the central phase of its existence, the system is in a disintegrated state and appears as proplatelets and platelets. The mechanism of the dispersal and combination of elements and hemostatic potential of the megakaryocyte platelet system serves the apparatus of structural and contractile proteins, which acts as its system-forming factor. 相似文献
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The RAND Corporation established a laboratory to conduct an interdisciplinary investigation of human factors in man-machine systems. RAND from 1951 to 1954 conducted a number of studies related to an Air Defense Direction Center (radar-site) concerning "a system that not only processes incoming information, but also makes crucial decisions based on interpretations of it." It was possible, on the basis of hypotheses generated and tested in the laboratory, to make some rather detailed predictions about system learning. A somewhat simplified schematic diagram of a system is presented. Various psychological skills important to STP (Systems Training Program) are briefly described. The "rapid growth of automation techniques presents a real challenge for psychologists, guaranteeing a most exciting future for those who care to meet it." (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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棒材轧机的PLC控制系统 总被引:7,自引:1,他引:6
论述了涟源钢铁厂棒材轧机自动控制原理和系统的基本结构,包括速度级联控制,活套高度控制,飞剪控制等的基本方法,同时,还叙述了SIEMENSPLC的配置和应用软件结构。 相似文献
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滚筒式切头飞剪是武钢70年代引进的设备。本文介绍了由该设备改进的PLC控制系统的工作原理、长度剪切控制、数学模型、系统组成和控制程序的编制。 相似文献