DIN IEC 60244-12-2-1992 无线电发射机测量方法.第12部分:音响设备和电视播放设备发射机和换位器的说明书编写指南.单篇规范
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【英文标准名称】:Methodsofmeasurementforradiotransmitters;guidelinefordrawingupdescriptiveleafletsfortransmittersandtransposersforsoundandtelevisionbroadcasting;specificationsheets;identicalwithIEC60244-12-2:1989
【原文标准名称】:无线电发射机测量方法.第12部分:音响设备和电视播放设备发射机和换位器的说明书编写指南.单篇规范
【标准号】:DINIEC60244-12-2-1992
【标准状态】:现行
【国别】:德国
【发布日期】:1992-02
【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】:无线电发射机;技术文献;发射机;额定值;声音广播;测量;额定功率;测量技术;特性;技术数据单;电视广播;差转机;性能;规范
【英文主题词】:Establishment;Measurement;Measuringtechniques;Performance;Powerratings;Properties;Radioequipment;Radiotransmitters;Ratings;Soundbroadcasting;Specification;Technicaldatasheets;Technicaldocument
【摘要】:Guidelineformanufacturersdescriptiveleafletsprovidinginformationontransmittersandtransposersforsoundandtelevisionbroadcasting.
【中国标准分类号】:M72;M74
【国际标准分类号】:33_170
【页数】:10P;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforVerifyingAcousticEmissionSensorResponse
【原文标准名称】:检验声音传播传感器响应的标准实施规程
【标准号】:ASTMF2174-2002(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:F18.55
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:acrylicrod;calibration;sensor;Acousticemission(AE)testing;Acrylicsensorrod;Calibration--acousticemissionanalysisinstrumentation;Sensitivitycriterion/response;Sensors;Verification
【摘要】:Degradationinsensorperformancecanoccurduetodropping,mechanicalshockwhilemountedontheteststructure,temperaturecycles,andsoforth.Itisnecessaryanddesirabletohaveasimplemeasurementprocedurethatwillchecktheconsistencyofsensorresponse,whileholdingallothervariablesconstant.Whiletestblocksofmanydifferentkindshavebeenusedforthispurposeformanyyears,anacrylicpolymerrodoffersthebestall-aroundcombinationofsuitableacousticproperties,practicalconvenience,easeofprocurement,andlowcost.Becausetheacousticpropertiesoftheacrylicrodareknowntodependontemperature,thispracticerequiresthattherod,sensors,andcouplantbestabilizedatthesameworkingtemperature,priortoapplicationofthepractice.Attentionshouldbepaidtostorageconditionsfortheacrylicpolymerrod.Forexample,itshouldnotbeleftinafreezingorhotenvironmentovernight,unlessitisgiventimefortemperaturestabilizationbeforeuse.Properlyappliedandwithproperrecordkeeping,thispracticecanbeusedinmanyways,suchas:Todeterminewhenasensorisnolongersuitableforuse.Tochecksensorsthathavebeenexposedtohigh-riskconditionssuchasdropping,overheating,andsoforth.Togetanearlywarningofsensordegradationovertime.Toobtainmatchedsetsofsensorsandpreamplifiers.Toverifysensorsquicklybutaccuratelyinthefield,andtoassisttroubleshootingwhenachanneldoesnotpassaperformancecheck.1.1Thispracticeisusedforroutinelycheckingthesensitivityofacousticemission(AE)sensors.Itisintendedtoprovideareliable,preciselyspecifiedwayofcomparingasetofsensorsortellingwhetheranindividualsensor''ssensitivityhasdegradedduringitsservicelife,orboth.1.2Theprocedureinthispracticeisnotax201C;calibrationx201D;anddoesnotgivefrequency-responseinformation.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thispracticedoesnotpurporttorecommendonesensormanufactureroveranothernordoesitimplythatonetypeofsensorwillreactdifferentlyfromanotherwhenusingthisprocedure.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N65
【国际标准分类号】:17_140_01
【页数】:4P.;A4
【正文语种】:英语
Product Code:SAE AS3128
Title:Pin, Expansion - Cres, 416 or 416SE, Short, UNS S41600/UNS S41623
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:No scope available.
