共查询到20条相似文献,搜索用时 31 毫秒
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电气工程的自动化可以说是其在现代科技背景下的主要发展方向,现今电气自动化已经逐渐取得了电气工程中的核心地位,其在实际的应用中可以提供更加高效的工业控制系统,以顺序控制、时间控制来保证系统运行的稳定性、可靠性,使电气自动化的应用价值可以良好的体现出来,进而推动其在电气工程中的发展。 相似文献
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电气工程自动化技术在变电站、发电厂、电网调度等各个方面都具有十分重要的应用,有效提升电气工程运行效率与质量,为我国电气工程领域的发展做出了巨大的贡献。同时,在未来随着我国科技水平的提升,电气自动化技术必将被不断的完善与革新,实现真正的自动化控制与管理,在各行各业发展中发光发热。本文主要是针对电气自动化在我国电气工程中应用的各方各面进行详细的分析与控制,使人们对电气自动化技术认识以及对其在电气工程中的应用了解更加明确和深入,为更好地对电气自动化技术进行改进、完善、创新和发展提供参考。 相似文献
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高威华 《中国石油和化工标准与质量》2019,(4)
电气自动化的发展在促进经济建设、推动我国经济进步的过程中发挥着不可替代的作用。我国电气自动化的深入发展,不仅提升了设备的利用效率,还在很大程度上提升了人们对设备的控制力度。电气自动化生产的关键所在就是智能控制,智能控制一方面可以促进我国电气工程技术水平的提升,另一方面还能够提高电气设备的质量。所以,我们必须要加快电气自动化工程建设,提升电气工程的质量和性能,并不断促进其自动化发展,同时还要做好电气自动化工程控制系统研究。本文主要分析电气自动化控制系统设计中存在的问题,并在此基础上提出电气自动化工程控制系统的未来发展趋势,希望对电气自动化工程控制系的发展有所帮助。 相似文献
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Electrical Properties of Woodceramics 总被引:15,自引:0,他引:15
Toshikazu Suda Nobukazu Kondo Toshihiro Okabe Kouji Saito 《Journal of Porous Materials》1999,6(3):255-258
Woodceramics have recently attracted much attention as ecomaterials at low cost. Electrical properties of the woodceramics (WCM hereafter) have been characterized in the range 10–70% relative humidity and for temperatures from –20 to 100°C. The WCM bulk has been prepared by burning MDF board impregnated with phenolic resin at 650 and 750°C. Electrical resistance decreased linearly with increasing temperature, indicating the negative temperature coefficient like semiconductor. Relative humidity dependence of the resistance also indicated excellent linear characteristics between 10 and 70% RH measured here. Activation energies of 0.21, 0.15, 0.05, and 0.01 eV have been revealed from van der Pauw method. The excellent linearity for humidity and temperature is prominent advantages of WCM which may be useful as a new humidity and also temperature sensor. 相似文献
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M. D. RIGTERINK 《Journal of the American Ceramic Society》1958,41(11):501-506
During the past 30 years, the principal ceramic insulating materials have been the electrical porcelains, the steatites, and the high alumina bodies. The compositions, the structures, and the properties of these materials are discussed. Other porcelains and insulating compositions, containing as their principal crystalline phases mullite, zircon, forsterite, cordierite, wollastonite, or β-spodumene, have unusual properties and are useful for specialty items. Predictions of future trends in ceramic insulating materials are made. 相似文献
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The measurement of particle size distributions using electrical mobility can be accelerated significantly by an alternate mode of operating mobility instruments. Rather than changing the electric field in discrete steps to select particles in a given mobility range, the electric field can be scanned continuously. The particles are classified in a time-varying electric field, but for an exponential ramp in the field strength there remains a one-to-one correspondence between the time a particle enters the classifier and the time it leaves. By this method, complete scans of mobility with as many as 100 mobility measurements have been made in 30 seconds using a differential mobility classifier with a condensation nuclei counter as a detector. 相似文献
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