ASME MFC-12M-2006 多端皮托管主元件封闭管道中液体流量测量

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【英文标准名称】:MeasurementofFluidFlowinClosedConduitsUsingMultiportAveragingPitotPrimaryElements
【原文标准名称】:多端皮托管主元件封闭管道中液体流量测量
【标准号】:ASMEMFC-12M-2006
【标准状态】:现行
【国别】:美国
【发布日期】:2006-01-01
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:封闭;导(线)管;压差;元素;流动;流量测量;流量率;流体;气体;信息;液体;测量;测量装置;相位;压力传输器;轮廓;传输器
【英文主题词】:Closed;Conduits;Differentialpressure;Elements;Flow;Flowmeasurement;Flowrate;Fluids;Gases;Information;Liquids;Measurement;Measuringdevices;Phase;Pressuretransmitter;Profile;Transmitters
【摘要】:ThisStandard,providesinformationontheuseofmultiportaveragingPitothead-typedevicesusedtomeasureliquidsandgases.TheStandardapplieswhentheconduitsarefullandtheflow(a)hasafullydevelopedprofile;(b)remainssubsonicthroughoutthemeasurementsection;(c)issteadyorvariesonlyslowlywithtime;(d)isconsideredsingle-phase.Adifferentialpressuretransmitterorotherpressuremeasuringdevice,knownasasecondaryelement,mustbeusedwithamultiportaveragingPitotprimaryelementtoproduceaflowratemeasurement.AlthoughmultiportaveragingPitotprimaryelementsaresometimesusedinnoncircularconduits,suchapplicationsarebeyondthescopeofthisStandard.
【中国标准分类号】:A52
【国际标准分类号】:17_120_10
【页数】:20P.;A4
【正文语种】:英语

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上一篇: ASME B89.7.5-2006 长度国际单位制尺寸测量的计量溯源(ASME技术报告)
下一篇: ASME MFC-13M-2006 封闭管道中流体流量的测量:跟踪法

【英文标准名称】:Acoustics-DeterminationofSoundPowerLevelsandSoundEnergyLevelsofNoiseSourcesUsingSoundPressure-EngineeringMethhodsforSmall,MovableSourcesinReverberantFields-Part1:ComparisonMethodforaHard-WalledTestRoom
【原文标准名称】:声学.利用声压的噪声源声功率级和声能级的测定.混响场中小型可移动声源工程法.第1部分:硬壁测试室用对比法
【标准号】:ANSI/ISO3743-1-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acousticmeasurement;Acousticpropertiesandphenomena;Acoustictesting;Acoustictestingrooms;Acousticalreverberation;Acoustics;Audiofrequencies;Calibration;Closedtestrooms;Comparisonanalysis;Comparisonmethods;Comparisonsoundsources;Definitions;Determination;Externalnoise;Handling;Humidity;Information;Installations;Machines;Measurement;Measuringinstruments;Measuringtechniques;Microphones;Noise;Noise(environmental);Noisemeasurements;Noisesources;Occupationalsafety;Operation;Precision;Sonictesting;Sound;Soundintensity;Soundlevel;Soundlevels;Soundproofing;Soundradiation;Soundsources;Specification(approval);Temperature;Testing;Testingconditions;Tests;Walls
【摘要】:Specifiesmethodsfordeterminingsoundpowerlevelorsoundenergylevelofanoisesourcebycomparingmeasuredsoundpressurelevelsemittedbyasource(machineryorequipment)mountedinahard-walledtestroom,characteristicsofwhicharespecified,withthosefromacalibratedreferencesoundsource.Soundpowerlevel(orinthecaseofnoiseburstsortransientnoiseemission,soundenergylevel)producedbyanoisesourceinfreqbandsofwidth1octaveiscalculatedusingthosemsmts.
【中国标准分类号】:Z32
【国际标准分类号】:17_140_50
【页数】:
【正文语种】:英语

Product Code:SAE J2808
Title:Road/Lane Departure Warning Systems: Information for the Human Interface
Issuing Committee:Safety And Human Factors Steering Committee
Scope:The Road/Lane Departure Warning System is a crash-avoidance technology which warns drivers if they are drifting (or have drifted) out of their lane or from the road. This warning system is designed to help prevent the possibility of a run-off-road crash. This system will not take control of the vehicle; it will only let the driver know that he/she needs to steer back into the lane. This warning system is not designed as a lane-change monitor, or a merging system which warns of other vehicles.This informational report applies to OEM and after-market Road/Lane Departure warning systems for light-duty vehicles on relatively straight roads with a radius of curvature of 500m or more, and under good weather conditions. Future revisions should consider the implications of newer variations on the user experience.