BS 4656-7-1988 机床精度及试验方法.第7部分:卧式往复台平面磨床规范
时间:2024-05-07 23:10:54 来源: 标准资料网 作者：标准资料网 阅读：9400
【英文标准名称】:Accuracyofmachinetoolsandmethodsoftest.Specificationforsurfacegrindingmachines,horizontalspindle,reciprocatingtabletype
【原文标准名称】:机床精度及试验方法.第7部分:卧式往复台平面磨床规范
【标准号】:BS4656-7-1988
【标准状态】:作废
【国别】:英国
【发布日期】:1988-09-30
【实施或试行日期】:1988-09-30
【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】:导轨;准确度;机床工作台;主轴;磨床;加工公差;验证;试验条件;公差;形状公差;水平的;机床;性能试验;直线度测量;机床部件;尺寸公差
【英文主题词】:
【摘要】:
【中国标准分类号】:J55
【国际标准分类号】:25_080_50
【页数】:16P;A4
【正文语种】:英语
【英文标准名称】:Paintsandvarnishes-Stonechipresistancetestforcoatings-Part1:Multiimpacttest
【原文标准名称】:涂料和清漆.涂层耐石头碎片划伤试验.第1部分:多次冲击试验
【标准号】:DIN55996-1-2001
【标准状态】:作废
【国别】:德国
【发布日期】:2001-04
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:清漆涂层;粒状物;清漆;涂漆;摩托车;冲击试验;涂料;覆层;规程;材料强度;岩石坠落;涂层材料;表面;运载工具;试验设备;试验
【英文主题词】:Coatofvarnishes;Coatingmaterials;Coatings;Granulates;Impacttesting;Motorvehicles;Painting;Paints;Procedures;Rockfall;Strengthofmaterials;Surfaces;Testequipment;Testing;Varnishes;Vehicles
【摘要】:
【中国标准分类号】:G50
【国际标准分类号】:87_040
【页数】:9P;A4
【正文语种】:德语
【英文标准名称】:StandardGuideforMeasurementofAtmosphericWindandTurbulenceProfilesbyAcousticMeans
【原文标准名称】:用声学方法测量大气气流和湍流剖面的标准指南
【标准号】:ASTMD7145-2005(2010)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【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】:D22.11
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:acousticsounder;remotesensing;sodar;windprofiler;windprofiling;Wind;Acousticaltests;Airqualityanalysis;Sodar;Turbulence
【摘要】:Sodarshavefoundwideapplicationsfortheremotemeasurementofwindandturbulenceprofilesintheatmosphere,particularlyinthegapbetweenmeteorologicaltowersandthelowerrangegatesofwindprofilingradars.Thesodarx2019;sfarfieldacousticpowerisalsousedforrefractiveindexcalculationsandtoestimateatmosphericstability,heatflux,andmixedlayerdepth(1-5).Sodarsareusefulforthesepurposesbecauseofstronginteractionbetweensoundwavesandtheatmospherex2019;sthermalandvelocitymicro-structurethatproduceacousticreturnswithsubstantialsignal-to-noiseratios(SNR).ThereturnedechoesareDoppler-shiftedinfrequency.Thisfrequencyshift,proportionaltotheradialvelocityofthescatteringsurface,providesthebasisforwindmeasurement.Advantagesofferedbysodarwindsoundingtechnologyincludereasonablylowprocurement,operating,andmaintenancecosts,noemissionsofeye-damaginglightbeamsorelectromagneticradiationrequiringfrequencyclearances,andadjustablefrequenciesandpulselengthsthatcanbeusedtooptimizedataqualityatdesiredrangesandrangeresolutions.Whenproperlysitedandusedwithadequatesamplingmethods,sodarscanprovidecontinuouswindandturbulenceprofileinformationatheightrangesfromafewtensofmeterstooverakilometrefortypicalaveragingperiodsof1to60minutes.1.1Thisguidedescribestheapplicationofacousticremotesensingformeasuringatmosphericwindandturbulenceprofiles.Itincludesasummaryofthefundamentalsofatmosphericsounddetectionandranging(sodar),adescriptionofthemethodologyandequipmentusedforsodarapplications,factorstoconsiderduringsiteselectionandequipmentinstallation,andrecommendedproceduresforacquiringvalidandrelevantdata.1.2Thisguideappliesprincipallytopulsedmonostaticsodartechniquesasappliedtowindandturbulencemeasurementintheopenatmosphere,althoughmanyofthedefinitionsandprinciplesarealsoapplicabletobistaticconfigurations.Thisguideisnotdirectlyapplicabletoradio-acousticsoundingsystems(RASS),ortomographicmethods.
【中国标准分类号】:A42
【国际标准分类号】:17_140_99
【页数】:9P.;A4
【正文语种】:英语