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Effects of Electric contact failure on Signal Transmission in the Lossy Circuits

The Journal of China Universities of Posts and Telecommunications 2004年第2期11卷 50-54页

作者： CHENYa SUNBai-sheng LabofTestingTechnologyandAutomationApparatus BeijingUniversityofPostsandTelecommunicationsBeijing100876P.R.China LabofTestingTechnologyandAutomationApparatus BeijingUniversityofPostsandTelecommunicationsBeijing100876P.R.China

Based on the former research results of the influence of contact failure in ideal and unmatched circuits, this paper further studies theoretically the effects of contact failure on the digital signal transmission in the lossy circuits, which may happen widely in practical applications. Experiences show that even in high-quality lines, losses deform the voltage and current wave shapes owing to their effects on the amplitude of the various waves making up the over-all line voltage and current. Although the derivations show that the effects of contact failure in the lossy circuits on the signal transmission are quite complicated. The probability of occurrence of error codes can be increased significantly.

关键词： contact failure lossy circuits signal transmission

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Manifold Decomposition Processes of Silicone Vapor and Electrical contact failure

Manifold Decomposition Processes of Silicone Vapor and Elect...

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The 26th International Conference on Electrical contacts and the 4th International Conference on Reliability of Electrical Products & Electrical contacts

作者： Terutaka Tamai Shigeru Sawada yasuhiro Hattori (ElConTech Consulting Ltd.) Shiroi city ChibaJapan (Mie University) Tsu city MieJapan (AutoNetworls Technilogy Ltd.) YokkaichiMieJapan

Adsorbed silicone vapor on contact surfaces decomposes typically to SiO2 by elevated temperature due to discharge or Joule heating.However,even if temperature is lower than decomposition temperatu

ISBN: (纸本)9781622763136

Adsorbed silicone vapor on contact surfaces decomposes typically to SiO2 by elevated temperature due to discharge or Joule heating.However,even if temperature is lower than decomposition temperatu

关键词： Silicone vapor Silicone contamination Silicone compound contact failure Decomposition Relay Silicones decomposition EQUILIBRIUM REACTIONS Vapors imperfect contact Oxidation process molecular structure contact surface Fever

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Combined effects of fretting and pollutant particles on the contact resistance of the electrical connectors

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Progress in Natural Science:Materials International 2017年第3期27卷 385-390页

作者： Zhigang Kong Jonathan Swingler Research Laboratory of Electrical contacts Beijing University of Post and Telecommunications School of Engineering & Physical Sciences Heriot-Watt University

Usually,when electrical connectors operate in vibration environments,fretting will be produced at the contact interfaces.In addition,serious environmental pollution particles will affect contact resistance of the connectors.The fretting will worsen the reliability of connectors with the pollutant particles.The combined effects of fretting and quartz particles on the contact resistance of the gold plating connectors are studied with a fretting test system.The results show that the frequencies have obvious effect on the contact resistance.The higher the frequency,the higher the contact resistance is.The quartz particles cause serious wear of gold plating,which make the nickel and copper layer exposed quickly to increase the contact resistance.Especially in high humidity environments,water supply certain adhesion function and make quartz particles easy to insert or cover the contact surfaces,and even cause opening resistance.

关键词： Gold plating Fretting contact failure Electrical contact

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contact Resistance Characteristics of Relays Operated in Vapors Evaporated from Non-Silicone-Type Acryl-Based Polymeric Products Cured in Various Manners

Contact Resistance Characteristics of Relays Operated in Vap...

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The 26th International Conference on Electrical contacts and the 4th International Conference on Reliability of Electrical Products & Electrical contacts

作者： Makoto Hasegawa Nanae Kobayashi Yoshiyuki Kohno Hiroshi Ando Chitose Institute of Science and Technology Kaneka Corporation OsakaJapan

The authors have already reported that when relays were operated to break load currents in vapors evaporated from an acryl-based non-silicone-type polymeric cured product that can be used as replac

ISBN: (纸本)9781622763136

The authors have already reported that when relays were operated to break load currents in vapors evaporated from an acryl-based non-silicone-type polymeric cured product that can be used as replac

关键词： Polyacrylate Silicone Siloxane contact resistance contact failure Arc discharges contact resistance relay Vapors heating chambers product types load current operating frequency Pickled deterioration break operation polymers

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