SAE AMS3814/15 Cord, Coreless, Para-Aramid Intermediate Modulus 300 Lb (1335 N), 1500 Ft Per Lb (1005 M/Kg) (Cancelled F
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Product Code:SAE AMS3814/15
Title:Cord, Coreless, Para-Aramid Intermediate Modulus 300 Lb (1335 N), 1500 Ft Per Lb (1005 M/Kg) (Cancelled Feb 1996)
Issuing Committee:Ams P Polymeric Materials Committee
Scope: This specification has been 'CANCELLED' by the Aerospace Materials Division, SAE, as of February 1996.
【英文标准名称】:StandardPracticeforCharacterizingAcousticEmissionInstrumentation
【原文标准名称】:声辐射测量仪表表征的标准规程
【标准号】:ASTME750-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:E07.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:声音传播;试验;无损检验;测量;仪器装置;声学;发射;噪声辐射
【英文主题词】:acousticemission;AE;dead-time;gain;preamplifier;sensitivity;sensor;signalprocessor;threshold
【摘要】:1.1Thispracticeisrecommendedforuseintestingandmeasuringoperatingcharacteristicsofacousticemissionelectroniccomponentsorunits.(SeeAppendixX1foradescriptionofcomponentsandunits.)Itisnotintendedthatthispracticebeusedforroutinechecksofacousticemissioninstrumentation,butratherforperiodicevaluationorintheeventofamalfunction.Thesensorisnotaddressedinthisdocumentotherthansuggestingmethodsforstandardizingsystemgains(equalizingthemchanneltochannel)whensensorsarepresent.1.2Wherethemanufacturerprovidestestingandmeasuringdetailsinanoperatingandmaintenancemanual,themanufacturer'smethodsshouldbeusedinconjunctionwiththemethodsdescribedinthispractice.1.3Difficultorquestionableinstrumentationmeasurementsshouldbereferredtoelectronicsengineeringpersonnel.1.4Themethodssetforthinthispracticearenotintendedtobeeitherexclusiveorexhaustive.1.5Themethods(techniques)usedfortestingandmeasuringthecomponentsorunitsofacousticemissioninstrumentation,andtheresultsofsuchtestingandmeasuringshouldbedocumented.Documentationshouldconsistofphotographs,chartsorgraphs,calculations,andtabulationswhereapplicable.1.6AEsystemsthatusecomputerstocontrolthecollection,storage,display,anddataanalysisareincommonuse.Featuresofthecomputer-basedsystemsmightincludewaveformcollectionaswellasawideselectionofmeasurementparametersrelatingtotheAEsignal.Themanufacturerprovidesaspecificationforeachsystemthatspecifiestheoperatingrangeandconditionsforthesystem.Allcalibrationandacceptancetestingofcomputer-basedAEsystemsmustusethemanufacturer'sspecificationasaguide.Thispracticedoesnotcovertestingofthecomputerorcomputerperipherals.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N65
【国际标准分类号】:17_140_20
【页数】:10P.;A4
【正文语种】:
基本信息
| 标准名称： | 中系列组合夹具件结构形式 异形压板 |
| 发布日期： | 1986-07-03 |
| 实施日期： | 1986-07-03 |
| 首发日期： | |
| 作废日期： | 1995-04-21 |
| 出版日期： | |
| 页数： | 3页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 电气工程 电工器件 连接装置
