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BS EN 60444-8-2003 石英晶体元件参数的测量.表面安装石英晶体元件用试验装置

作者:标准资料网 时间:2024-05-14 00:17:53  浏览:9611   来源:标准资料网
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【英文标准名称】:Measurementofquartzcrystalunitparameters-Testfixtureforsurfacemountedquartzcrystalunits
【原文标准名称】:石英晶体元件参数的测量.表面安装石英晶体元件用试验装置
【标准号】:BSEN60444-8-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-11-19
【实施或试行日期】:2003-11-19
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:表面安装;晶体谐振器;石英晶体;压电器件;电气工程;测量;电子设备及元件;试验
【英文主题词】:Crystalresonators;Crystals(electronic);Electricalengineering;Electronicequipmentandcomponents;Equivalentcircuits;Frequencymeasurement;Frequencyranges;Measurement;Measuringaccuracy;Measuringranges;Measuringtechniques;Piezoelectricdevices;Quartzcrystals;Resonance;Resonanceresistance;Resonantfrequency;SMD;Surfacemounting;Testset-ups;Testing;Zerophase
【摘要】:ThispartofIEC60444explainsthetestfixturethatallowstheaccuratemeasurementofresonancefrequency,resonanceresistance,andequivalentelectricalcircuitparametersofaleadlesssurfacemountedquartzcrystalunitsusingzerophasetechniqueasspecifiedinIEC60444-4andIEC60444-5.Anequivalentcircuitconstantandtheapplicationfrequencyrangeobtainedbyusingthetestfixturearethenshown.Inaddition,thisisappliedtotheenclosureshowninIEC61240asacrystalunitwithoutleadwires.AnequivalentcircuitofthetestfixtureandanelectricvaluesarebasedonIEC60444-1andIEC60444-4.Therangeofloadcapacitanceis10pFormore.CalibrationofthemeasurementsystemandCLadapterboardisexplainedhereinafter.Thisdocumentappliestothetestfixturethatallowstheaccuratemeasurementofresonancefrequency,resonanceresistance,parallelcapacitanceC0,motionalcapacitanceC1,andmotionalinductanceL1ofthecrystalunitoverthefrequencyrangefrom1MHzto150MHzusinganautomaticnetworkanalyzer,basedonIEC60444-5.
【中国标准分类号】:L21
【国际标准分类号】:31_140
【页数】:14P.;A4
【正文语种】:英语


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【英文标准名称】:Bitumenandbituminousbinders-Frameworkspecificationforpolymermodifiedbitumens;EnglishversionofDINEN14023:2006
【原文标准名称】:沥青和沥青胶粘剂.聚合改良沥青的框架规范
【标准号】:EN14023-2005
【标准状态】:现行
【国别】:
【发布日期】:2006-01
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:粘合剂;沥青;CE标志;CE标记;合格证明书;认证(认可);合格;建筑;施工材料;测定;材料试验;改良的;聚合沥青;高聚物;特性;公路建设;抽样方法;规范;规范(验收);试验
【英文主题词】:Bindingagents;Bitumens;CEmark;CEmarking;Certificatesofconformity;Certification(approval);Conformity;Construction;Constructionmaterials;Determination;Materialstesting;Modified;Polymerbitumen;Polymers;Properties;Roadconstruction;Samplingmethods;Specification;Specification(approval);Testing
【摘要】:
【中国标准分类号】:Q20
【国际标准分类号】:93_080_20
【页数】:26P.;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforThermalTransmittanceofTextileMaterials
【原文标准名称】:纺织材料的热传导的标准试验方法
【标准号】:ASTMD1518-2011
【标准状态】:现行
【国别】:
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D13.51
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:棉絮;体密度;织物;电热板;绝缘;热阻;电热板/箱形法;纺织用纤维;热传送特性;透射比和反射比
【英文主题词】:batting;bulkdensity;fabric;hotplate;insulation;thermalresistance;Hotplate/boxmethods;Textilefibers;Thermaltransmissionproperties;Transmittanceandreflectance
【摘要】:Thethermalresistanceofabattingorbatting/fabricsystemisofconsiderableimportanceindeterminingitssuitabilityforuseinfabricatingcoldweatherprotectiveclothing,sleepingbags,andbeddingsystems.Thethermalinterchangebetweenmanandhisenvironmentis,however,anextremelycomplicatedsubjectwhichinvolvesmanyfactorsinadditiontotheinsulationvaluesoffabricsandbattings.Therefore,measuredthermalinsulationvaluescanonlyindicaterelativemeritofaparticularmaterial.1.1Thistestmethodcoversthemeasurementofthethermalresistance,understeady-stateconditions,ofbattingsandbatting/fabricsystems,andothermaterialswithinthelimitsspecifiedin1.2.Itmeasurestheheattransferfromawarm,dry,constant-temperature,horizontalflat-plateupthroughalayerofthetestmaterialtoacoolatmosphereandcalculatestheresistanceofthematerial.Themeasurementsaremadeunderstillairconditions(Option1)orwithahorizontalairflowoverthespecimen(Option2).1.2Forpracticalpurposes,thistestmethodislimitedtodeterminationsonspecimensofbattingsandlayeredbatting/fabricassemblieshavinganintrinsicthermalresistancefrom0.1to1.5Kx00B7;m2/Wandthicknessesnotinexcessof50mm.1.3Thistestmethodalsoprovidesamethodfordeterminingthebulkdensityofthematerial,theinsulationperunitthickness,andtheinsulationperunitweight.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thisstandarddoesnotpurporttoaddressthesafetyconcernsassociatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_30
【页数】:6P.;A4
【正文语种】:



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