EDDL的技术概述

简要介绍EDDL技术的发展过程,包括该技术的起源、结构和执行情况。     

EDDL的技术概述(续)

简要介绍EDDL技术的发展过程,包括该技术的起源、结构和执行情况。     

电子设备结构的CAD技术

计算机辅助设计(CAD)技术完全改变了过去传统的设计手段和设计方法,具有多方面的优点。本文着重介绍了 CAD 技术的自动绘图和三维立体造型技术在电子设备设计中的一些应用:手工难以绘制的曲线图的自动绘制,自动绘制的工程图,直观的消隐立体图及等值线图,逼真的彩色立体造型图;生动形象的三维动画模拟设计(录相片)。这种先进的设计方法,其前景是十分诱人的。     

电子设备液体相变冷却技术研究

文中介绍了一种电子设备液体相变冷却的技术方案,为验证技术方案的可行性,对液体相变冷却原理样机进行测试和数据采集,对比水冷系统进行测试,了解液体相变冷却的性能.对原理样机进行了4种工况下的测试,对比分析表明,液体相变冷却技术具有体积和重量小、传热性能好、均温性好等优势.     

大型电子设备的器件级维修（续三）

(5)主要辅助功能.瞬态掉电监测/复位保护.测试仪在正常使用情况下,驱动通道仅在测试期间打开,测试完成后立即关闭.通道打开的时间,一般都控制在后驱动技术限定的时间之内.但在实际使用过程中,由于强烈的电网干扰或外接电源插头(座)晃动等原因,可能造成瞬间掉电,使测试仪内部电路状态发生紊乱,导致应该关闭的通道打开.如果测试仪不能在毫秒级的时间内发现并重新设置内部电路状态,关闭测试通道,将会由于长时间驱动被测器件而使其特性软化、寿命缩短,甚至当场损坏.这就产生了测试安全性问题.     

气动技术在电子设备上的应用

随着电子设备的精密化和自动化,气动技术已成为电子设备研制过程中不可缺少的技术.基于几种电子设备,重点介绍了气动技术的应用和特点.     

电子设备的可靠性试验

可靠性试验是可靠性工程最基本的内容和最重要的工作项目,对电子设备可靠性试验的技术基础,可靠性试验的特点和分类,电子设备可靠性试验的方案设计以及可靠性试验数据的分析和处理方法作了一些介绍。     

电子设备液冷技术研究进展

随着电子设备发热功率密度的不断增加,传统的风冷已经无法满足高热流密度电子设备的散热。液冷技术是通过液冷介质与热源接触进行热交换,再由冷却液体将热量传递出去,具有高换热系数、良好的流动性及稳定的工作能力,因而成为现代电子设备冷却系统的首选。为了进一步适应新型电子设备的高性能、高可靠、低成本的发展趋势,液体冷却方式需要在理论分析和优化结构上做进一步的研究。文中首先综述了几种常用的液冷技术的原理、特点、研究动态和工程应用,并提出了液冷技术发展的趋势。     

车载电子设备二次冷却装置的研究

以某车载电子设备二次冷却装置为主要研究对象,讨论了车载电子设备二次冷却装置的主要技术指标,介绍了二次冷却装置的系统构成及工作原理,通过对车载电子设备二次冷却装置的技术研究,结合产品特点对系统进行优化设计,综合利用单片机控制技术、变频技术、高效传热技术等多项先进技术,满足了车载电子设备的多种不同冷却要求.     

防雷技术在采油站的应用

电子设备在石油天然气生产、储存、炼化中的应用越来越广泛,但其防雷技术却较为滞后,因此我们采用三级防雷技术来降低电子设备遭受雷击的几率,减少因雷击产生的安全事故。主中给出了具体的防雷措施。     

Book Reviews

Book reviewed in this article: Functional Histology. A Text and Atlas . By P. R. Wheater, H. G. Burkitt and V. G. Daniels. Electron Energy-Loss Spectroscopy in the Electron Microscope . By R. F. Egerton. Principles of Analytical Electron Microscopy . Edited by D. C. Joy, A. D. Romig, Jr & J. I. Goldstein. Basic Techniques for Transmission Electron Microscopy . By M. A. Hayat. RMS Handbooks. 11. An Introduction to Immunocytochemistry: Current Techniques and Problems. Revised Edition . By J. M. Polak and S. Van Noorden.     

Book Reviews

Book reviewed in this article: Cytodifferentiation in Plants—Xylogenesis as a Model System . By L. W. Roberts Freeze-fracture Replication of Biological Tissues. Techniques, Interpretation and Applications . By C. Stolinski and A. S. Breathnach Advances in Optical and Electron Microscopy . Vol. 6. Ed. R. Barer and V. E. Cosslett Ultrastruktur der Säugetierzelle . By R. V. Krstic Practical Scanning Electron Microscopy . Ed. by J. I. Goldstein and Harvey Yakowitz Practical Methods of Electron Microscopy, Vol. 3 . Part I—Fixation, dehydration and embedding of biological specimens. Part II—Ultramicrotomy. Ed. A. M. Glauert Defect Analysis in Electron Microscopy . By M. H. Loretto and R. E. Smallman Histochemical Techniques . 2nd edn. by J. D. Bancroft     

Book Reviews

Book reviewed in this article: The Science of Biological Specimen Preparation for Microscopy and Microanalysis . Edited by J. P. Revel , T. Barnard and G. M. Haggis . The Preparation of Biological Specimens for Scanning Electron Microscopy . Compiled by J. A. Murphy and G. M. Roomans . Computer-assisted Image Analysis Cytology . Edited by S. D. Greenberg . The Light Microscopy of Synthetic Polymers . By D. A. Hemsley . Journal de Physique, Colloque No. 2.     

Book Reviews

Book reviewed in this article: Stereology of Objects with Internal Structure. By Ivan Saxl. Microprobe Analysis in Medicine. Ultrastructure in Pathology Publication Series. Ed by P. Ingram, J. D. Shelburne, V. L. Roggli (Consulting Editors: J. V. Johannessen and V. E. Gould). R.M.S. Microscopy Handbook No. 18: Autoradiography: A Comprehensive Overview. By John R. J. Baker.     

Reviews

Book reviewed in this article: Practical Photomicrography . By J. Bergner , E. Gelbke , and W. MEhliss . English Edition translated by K. S. Ankersmit from the German Edition (Einführung in die praktische Mikrofotografie) Crystal Symmetry and Physical Properties . By S. BHAGAVANTAM. Rotifers . By Josef Donner . English translation by H. G. S. Wright . Modern Microscopy . By V. E. Cosslett .     

Book Reviews

Book reviewed in this article: Methods of Preparation for Electron Microscopy . By D. G. Robinson , U. Ehlers , R. Herken , B. Herrmann , F. Mayer and F.-W. Schürmann . The Physics of Medical Imaging . Edited by S. Webb . Adam Hilger     

The CMD-2 cryogenic magnetic detector

The CMD-2 cryogenic magnetic detector used in a set of experiments on the VEPP-2M electron-positron collider at energies as great as 1.4 GeV is described. The design of the detector subsystems and the algorithms for reconstructing tracks in the drift chamber and the CsI and BGO calorimeters are presented. The spatial and energy resolutions of the detector systems have been determined from analysis of experimental data. The design of the superconducting solenoid and the layout of its powering by means of a superconducting transformer are shown. The trigger system of the detector and the conditions for recording “charged” and “neutral” events on a magnetic tape are described. The procedure used to monitor the parameters of the detector systems during the experiment is presented. Original Russian Text ? E.V. Anashkin, V.M. Aul’chenko, R.R. Akhmetshin, V.Sh. Banzarov, L.M. Barkov, S.E. Baru, N.S. Bashtovoi, D.V. Bondarev, A.E. Bondar’, A.V. Bragin, N.I. Gabyshev, D.A. Gorbachev, A.A. Grebenyuk, D.N. Grigor’ev, D.A. Epifanov, I.V. Zhuravkov, V.G. Zavarzin, A.S. Zaitsev, S.G. Zverev, F.V. Ignatov, V.F. Kazanin, S.V. Karpov, G.M. Kolachev, P.P. Krokovnyi, A.S. Kuz’min, I.B. Logashenko, P.A. Lukin, K.Yu. Mikhailov, V.A. Monich, M.A. Nikulin, A.B. Nomerotskii, V.S. Okhapkin, S.G. Pivovarov, A.S. Popov, T.A. Purlats, S.I. Redin, N.I. Root, A.A. Ruban, N.M. Ryskulov, A.L. Sibidanov, V.A. Sidorov, A.N. Skrinskii, V.P. Smakhtin, I.G. Snopkov, E.P. Solodov, P.Yu. Stepanov, A.I. Sukhanov, V.M. Titov, V.E. Fedorenko, G.V. Fedotovich, B.I. Khazin, A.G. Shamov, Yu.M. Shatunov, B.A. Shvarts, B.N. Shuvalov, D.V. Chernyak, S.I. Eidel’man, Yu.V. Yudin, 2006, published in Pribory i Tekhnika Eksperimenta, 2006, No. 6, pp. 63–79.     

Reviews

Book reviewed in this article: Electron Microscopy of Cells and Tissues . Volume 1, Instrumentation and Techniques . By Fritiof S. Sjöstrand. Cell Structure. An introduction to biological electron microscopy . By Peter G. Toner and Katharine E. Carr. Scanning Electron Microscopy—Applications to materials and device science . By P. R. Thornton. The Biochemistry of Animal Development , Vol II. Biochemical Control Mechanisms and Adaptations in Development . Edited by Rudolf Weber.     

An instrument for measuring thermal characteristics of metals and alloys

An all-soldered instrument capable of measuring the density, surface tension, electron work function for metals or alloys, and wetting of solid surfaces under high static vacuum conditions has been designed and tested. Measurements of thermal characteristics of lithium samples have demonstrated a high reliability of the instrument. Original Russian Text ? B.B. Alchagirov, L.Kh. Afaunova, F.F. Dyshekova, T.M. Taova, R.Kh. Arkhestov, A.G. Mozgovoi, Z.A. Kokov, 2009, published in Pribory i Tekhnika Eksperimenta, 2009, No. 3, pp. 148–151.     

高压换热器的热处理

按设备制造规范和工程设计标准、图样要求，结合生产实际，制订出高压换热器球形封头热成形加热及热处理工艺、焊前进炉预热工艺、焊后热处理工艺、最终合拢缝局部焊后热处理工艺、最后做出经验总结，作为今后尿素高压设备热处理的参考。