DIN 128-1968 鞍形弹性垫圈
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【英文标准名称】:Curvedspringlockwashers
【原文标准名称】:鞍形弹性垫圈
【标准号】:DIN128-1968
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
【原文标准名称】:鞍形弹性垫圈
【标准号】:DIN128-1968
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:
下载地址: 点击此处下载
上一篇: DIN 126-1968 垫片.主要用于六角螺钉和六角螺母.产品等级C
下一篇: DIN 173 Bb.2-1968 更换式钻套.E型可换钻套.ES型和ER型快速更换钻套.钻套.带肩的圆柱头螺钉.不适用于新结构
下一篇: DIN 173 Bb.2-1968 更换式钻套.E型可换钻套.ES型和ER型快速更换钻套.钻套.带肩的圆柱头螺钉.不适用于新结构
【英文标准名称】:Connectorsforfrequenciesbelow3MHzforusewithprintedboards;part11:detailspecificationforconcentricconnectors(dimensionsforfreeconnectorsandfixedconnectors)
【原文标准名称】:印制板用频率低于3MHz的连接器第11部分:同轴连接器详细规范(自由连接器和固定连接器尺寸)
【标准号】:IEC60603-11-1992
【标准状态】:现行
【国别】:国际
【发布日期】:1992-03
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC48B
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;连接;额定值;试验;量规;规范(验收);印制电路;尺寸;电子工程;意见;视图;插头;电子设备及元件;详细规范;轴衬(机械元件);电路;电气工程;电插头
【英文主题词】:Bushes(mechanicalcomponents);Circuits;Connections;Detailspecification;Dimensions;Electricplugs;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Fasteners;Gauges;Isometric;Plugs;Printedcircuits;Ratings;Specification(approval);Testing;Views
【摘要】:Objectistospecifythedimensions,generalrequirementsandtestsfortheconcentricconnectorsforinterconnectionofheadphonesandmicrophonesinsoundsystemcomponents.
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:43P.;A4
【正文语种】:英语
【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Engineeringmethodsforsmall,movablesourcesinreverberantfields-Part2:Methodsforspecialreverberationtestrooms(ISO3743-2:1994);EnglishversionofDINEN
【原文标准名称】:声学.声压法测定噪声源声功率级.混响声场中小型可移动声源的工程检测法.第2部分:专用混响试验室法(ISO3743-2:1994),ENISO3的德文版本
【标准号】:DINENISO3743-2-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustictestingrooms;Acoustics;Closedtestrooms;Definitions;Determination;Directmethod;Environment;Externalnoise;Handling;Information;Insulations;Mathematicalcalculations;Measurement;Measuringincertainity;Measuringinstruments;Measuringtechniques;Methods;Microphones;Noise(environmental);Noisemeasurements;Noisesources;Portable;Powerlevels;Precision;Pressuremeasurement(fluids);Reverberationrooms;Reverberationtime;Sound;Soundabsorption;Soundlevel;Soundpressure;Soundradiation;Soundsources;Soundspectra;Springs(water);Testing
【摘要】:1.1GeneralThispartofISO3743specifiesarelativelysimpleen-gineeringmethodfordeterminingthesoundpowerlevelsofsmall,movablenoisesources.Themeasurementsarecarriedoutwhenthesourceisin-stalledinaspeciallydesignedroomhavingaspecifiedreverberationtimeoverthefrequencyrangeofinterest.TheA-weightedsoundpowerlevelofthesourceundertestisdeterminedfromasingleA-weightedsoundpressurelevelmeasurementateachmicrophoneposition,ratherthanfromasummationofoctave-bandlevels.Thisdirectmethodeliminatestheneedforareferencesoundsource,butrequirestheuseofaspecialreverberationtestroom.Thedi-rectmethodisbasedonthepremisethatthesoundpressurelevel,averagedinspaceandtimeinthetestroom,canbeusedtodeterminethesoundpowerlevelemittedbythesource.Thepropertiesofthespecialreverberationtestroomarechosensothattheroom'sinfluenceonthesoundpoweroutputoftheequipmentundertestissmall.Thenumberofmicro-phonepositionsandsourcelocationsrequiredinthetestroomarespecified.GuidelinesforthedesignofspecialreverberationroomsaregiveninannexB.inadditiontothedirectmethod,acomparisonmethodisalsodescribed(see8.3).However,sincetherequirementsonthetestroomforthecomparisonmethodofISO3743-1areconsiderablylessrestric-tive,itisrecommendedthatthecomparisonmethodofISO3743-1beusedifaspecialreverberationtestroomisnotavailable.NOTE1PrecisionmethodsforthedeterminationofthesoundpowerlevelsofsmallnoisesourcesarespecifiedinISO3741andISO3745.1.2TypesofnoiseThemethodsspecifiedinthispartofISO3743aresuitableformeasurementsofalltypesofnoisewithinaspecifiedfrequencyrange,exceptimpulsivenoiseconsistingofisolatedburstsofsoundenergy.NOTES2AclassificationofdifferenttypesofnoiseisgiveninISO12001.3Forsourcesofimpulsivenoiseconsistingofshort-durationnoisebursts,thefree-fieldmethodsspecifiedinISO3744andISO3745shouldbeused.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:32P.;A4
【正文语种】:英语
【原文标准名称】:印制板用频率低于3MHz的连接器第11部分:同轴连接器详细规范(自由连接器和固定连接器尺寸)
【标准号】:IEC60603-11-1992
【标准状态】:现行
【国别】:国际
【发布日期】:1992-03
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC48B
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;连接;额定值;试验;量规;规范(验收);印制电路;尺寸;电子工程;意见;视图;插头;电子设备及元件;详细规范;轴衬(机械元件);电路;电气工程;电插头
【英文主题词】:Bushes(mechanicalcomponents);Circuits;Connections;Detailspecification;Dimensions;Electricplugs;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Fasteners;Gauges;Isometric;Plugs;Printedcircuits;Ratings;Specification(approval);Testing;Views
【摘要】:Objectistospecifythedimensions,generalrequirementsandtestsfortheconcentricconnectorsforinterconnectionofheadphonesandmicrophonesinsoundsystemcomponents.
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:43P.;A4
【正文语种】:英语
【英文标准名称】:Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Engineeringmethodsforsmall,movablesourcesinreverberantfields-Part2:Methodsforspecialreverberationtestrooms(ISO3743-2:1994);EnglishversionofDINEN
【原文标准名称】:声学.声压法测定噪声源声功率级.混响声场中小型可移动声源的工程检测法.第2部分:专用混响试验室法(ISO3743-2:1994),ENISO3的德文版本
【标准号】:DINENISO3743-2-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Absorption;Acousticmeasurement;Acoustictesting;Acoustictestingrooms;Acoustics;Closedtestrooms;Definitions;Determination;Directmethod;Environment;Externalnoise;Handling;Information;Insulations;Mathematicalcalculations;Measurement;Measuringincertainity;Measuringinstruments;Measuringtechniques;Methods;Microphones;Noise(environmental);Noisemeasurements;Noisesources;Portable;Powerlevels;Precision;Pressuremeasurement(fluids);Reverberationrooms;Reverberationtime;Sound;Soundabsorption;Soundlevel;Soundpressure;Soundradiation;Soundsources;Soundspectra;Springs(water);Testing
【摘要】:1.1GeneralThispartofISO3743specifiesarelativelysimpleen-gineeringmethodfordeterminingthesoundpowerlevelsofsmall,movablenoisesources.Themeasurementsarecarriedoutwhenthesourceisin-stalledinaspeciallydesignedroomhavingaspecifiedreverberationtimeoverthefrequencyrangeofinterest.TheA-weightedsoundpowerlevelofthesourceundertestisdeterminedfromasingleA-weightedsoundpressurelevelmeasurementateachmicrophoneposition,ratherthanfromasummationofoctave-bandlevels.Thisdirectmethodeliminatestheneedforareferencesoundsource,butrequirestheuseofaspecialreverberationtestroom.Thedi-rectmethodisbasedonthepremisethatthesoundpressurelevel,averagedinspaceandtimeinthetestroom,canbeusedtodeterminethesoundpowerlevelemittedbythesource.Thepropertiesofthespecialreverberationtestroomarechosensothattheroom'sinfluenceonthesoundpoweroutputoftheequipmentundertestissmall.Thenumberofmicro-phonepositionsandsourcelocationsrequiredinthetestroomarespecified.GuidelinesforthedesignofspecialreverberationroomsaregiveninannexB.inadditiontothedirectmethod,acomparisonmethodisalsodescribed(see8.3).However,sincetherequirementsonthetestroomforthecomparisonmethodofISO3743-1areconsiderablylessrestric-tive,itisrecommendedthatthecomparisonmethodofISO3743-1beusedifaspecialreverberationtestroomisnotavailable.NOTE1PrecisionmethodsforthedeterminationofthesoundpowerlevelsofsmallnoisesourcesarespecifiedinISO3741andISO3745.1.2TypesofnoiseThemethodsspecifiedinthispartofISO3743aresuitableformeasurementsofalltypesofnoisewithinaspecifiedfrequencyrange,exceptimpulsivenoiseconsistingofisolatedburstsofsoundenergy.NOTES2AclassificationofdifferenttypesofnoiseisgiveninISO12001.3Forsourcesofimpulsivenoiseconsistingofshort-durationnoisebursts,thefree-fieldmethodsspecifiedinISO3744andISO3745shouldbeused.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_01
【页数】:32P.;A4
【正文语种】:英语