共查询到20条相似文献,搜索用时 0 毫秒
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G. Bärenthaler 《e & i Elektrotechnik und Informationstechnik》1998,115(10):509-512
Based on the assessment of the facility conditions at Verbund, measures to reduce the maintenance expenses are describeddv, while still maintaining the low rate of failures and energy breakdowns of the Verbund plants and without loosing the high reliability. In the future, condition-oriented maintenance takes over from the previous prevailing preventive maintenance. 相似文献
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飞机座舱仪表的实时仿真 总被引:2,自引:0,他引:2
黄锡山 《微电子学与计算机》1998,15(2):39-41
本文介绍了采用个人计算机、虚拟桌面技术和计算机图形动画技术,实时、准确地在计算机屏幕上仿真飞机座舱仪表在飞行中的动态过程中的实现方法和关键技术。 相似文献
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This article focuses on modular, wave-based, discrete-time modeling of the resonator oscillations. The main advantage of using a wave-based approach is that it explicitly simulates the way in which waves build up in a real instrument and therefore inherently yields a spatial representation. The wave-based approach also happens to be computationally efficient, mainly due to the fact that lossless traveling of waves in 1-D waveguides can be implemented with very few arithmetic operations 相似文献
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M. Schmid Dipl.-Ing. Dr. Univ.-Ass. C. Steger Dipl.-Ing. Dr. Ass.-Prof. R. Weiss Dipl.-Ing. Dr. O. Univ.-Prof. 《e & i Elektrotechnik und Informationstechnik》2003,120(2):55-60
Location awareness is a current topic of interest in the area of computer science. This field of research deals with the automated provision of location dependent services. This paper presents technologies for object tracking and messaging in the indoor area with respect to existing research projects and, subsequently, introduces LOMOT, a system, which has been developed at the Institute for Technical Informatics at the Technical University of Graz. LOMOT (LOcation based Messaging and Object Tracking), which is based on RF Tags and Bluetooth, aims to support flexible production cells as well as maintenance and inspection in large distributed industrial processes. 相似文献
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C. Grabner Dipl.-Ing. Dr. techn. H. Köfler Univ.-Prof. Dipl.-Ing. Dr. techn. 《e & i Elektrotechnik und Informationstechnik》2005,122(7-8):257-267
The very detailed discussion of the proposed analytical and numerical calculation methods for the magnetic flux linkages and the stored magnetic field energy of switched reluctance machines imposes that both approaches are suitable to deliver results with good agreement to practical measurements. Thereby, the application of numerical analysis methods within the construction process leads to results more accurate. Unfortunately, the used numerical approaches are very complex. However, if we have to take into account a number of necessary changes of the geometric dimensions within the design process of switched reluctance machines it is more favorable to take use of the very flexible analytical methods. 相似文献
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基于虚拟仪器平台的双光子吸收测试系统仿真研究 总被引:1,自引:0,他引:1
双光子吸收材料的非线性光学性能在光限幅、3D微制造、高密度存储和双光子荧光显微镜等领域具有广泛的应用前景和潜在的实用价值。寻找具有大双光子吸收截面的材料已成为光学及其交叉学科中最诱人,最活跃的研究领域之一。目前用于双光子吸收效应测量的主要手段有Z-scan法,双光子诱导荧光法,双光子瞬态吸收光谱法等。由于Z-scan法具有光路简单、灵敏度高及可同时测量三阶非线性极化率实部及虚部等诸多优点,已在相关领域获得了大量应用。目前有关该技术的研究基本集中在实验测试方面,理论仿真相对较少。利用虚拟仪器平台对应用于双光子吸收测试的Z-scan实验进行了仿真研究,讨论了实验参数合理性选择及实验参数间的依赖规律。通过仿真分析,重点给出了光阑半径对实验结果的影响规律,同时对扫描曲线拐点位置的变化规律也进行了详细的讨论。 相似文献
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以传感器特性的测试为背景,分析目前传感器课程教学实验环节中存在着设备缺乏、资金投入太多等问题,进行了虚拟压力传感器标定实验的研究。讲述了虚拟仪器的软件开发平台Labwindows/CVI和传感器的静态特性等基础知识,介绍了基于Labwindows/CVI虚拟压力传感器静态标定仪的设计与开发。通过测量和绘制线性度、迟滞、重复性曲线,来实现压力传感器静态参数的标定.接着详细地描述了用Labwindows/CVI语言实现激波管虚拟测试平台的过程,最后给出激波管虚拟实验平台对压力传感器动态特性的测试结果,实现传感器的动态标定。 相似文献
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针对实验室某种集成电路测试仪使用中存在的因电源电路的设计不够完善、带负载能力差而存在死机或复位不正常的问题,在原有电路基础上,对电源电路进行改进设计,增加了扩流电路,并对改进电路用EDA仿真技术进行对比验证,并在实际应用中解决了问题. 相似文献
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介绍了卫星测控站天线控制子系统的工作原理,给出了伺服控制系统框图,和大地坐标转换公式。通过推导从卫星下行信号中提取角跟踪方位、俯仰控制电压的公式,分析了目标在天线波束宽度内偏移与误差电压产生的线性关系,因此可以通过电压负反馈实现伺服天线对目标卫星的自引导式跟踪。最后采用虚拟仪器软件LabVIEW设计仿真实验,模拟了卫星天线角跟踪的工作原理。 相似文献
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基于虚拟仪器LabView的数字相敏检波算法仿真研究 总被引:1,自引:0,他引:1
微弱信号检测在现在科技发展中起着至关重要的作用,它的检测精度直接影响着天文,生化,物理等科技的发展进度。该文介绍了基于虚拟仪器技术和分段累加相关数字相敏检波算法对于微弱方波信号的检测,用于检测微弱直流信号。通过仿真此方法能有效地检测到微弱方波信号的幅值,进而可以用于检测微弱直流信号的幅值。 相似文献
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ISO/IEC 18000-6C简析 总被引:1,自引:0,他引:1
介绍了RFID技术,以及ISO/IEC 18000-6系列等RFID技术UHF频段标准的发展、完善历程,重点分析了ISO/IEC 18000-6中A、B、C三种模式的优缺点,针对中国UHF频段的标准制定提出了技术和应用层面的建议. 相似文献
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R. Eltschka ÖVE 《e & i Elektrotechnik und Informationstechnik》1998,115(9):474-479
The present paper covers achievements in EMC at the planning stage of complex buildings and of buildings for special equipment. These achievements are the more important and urgent, the higher integrated electronic devices, which shall work together without any impact on themselves or on others, are used in buildings. Achievements for EMC at the planning stage are done in high quality by independent consultants, who have a rich experience and practice in measuring and assessing of electromagnetic fields. 相似文献