标准压电陶瓷材料.doc

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1、划堪靛剥萤铮嗒钛初名苟StandardsforPiezoelectricCeramicMaterials硬侍邾绩彦衷耸区誓笪寄矩畔途癖瑟堍竽库渔偷馨Thisdocumentdetailssomeofthestandardsrelatedactivitiesforpiezoelectricmaterials,mainlybulkceramictypes.Standardsrelatedpurelytoquartzhavebeenomitted,inordertolimitthesizeofthetask.蜻茫阝杜钝骸蛐莛翻碌睚Theproductionofstandards,parti

2、cularlyinternationalones,isalongandunrewardingbusiness,andthattheyeverbecomestandardsisatributetothepersistenceofasmallnumberofindividuals.Consequentlytheexistenceornotofastandardinaparticularareaisnotsolelybecauseoftheneedforsuchastandard,butisduetotheconcertedeffortoftheseindividuals.Alsobeca

3、useoftheneedtokeepdocumentscurrent,ifyearsafterpublicationofastandardthereisnobodypreparedtomaintainthisdocumentthenthereisadangeritwillbewithdrawnorcancelled.Thissituationisreflectedinthepiezoelectricmaterialsstandardsarea,wheretherearestronggroupsinEurope(CENELEC)andAmerica(IEEE-UFFC),butsome

4、ofthemostquotedstandardshaverecentlybeenwithdrawn(IEEE176-1987,IEEE180-1986,MIL-STD1376B(SH)).宵锎呛史沟黑厕王猛垢稻StandardsorganisationswithPiezoelectricrelatedstandards卯宦惝醺戗獐脓处熬钹伊CENELEC稼壮桅吃旰蕹砸壁莠煲迈CENELECistheEuropeanCommitteeforElectrotechnicalStandardizationandIthasbeenofficiallyrecognisedastheEurope

5、anStandardsOrganisationinitsfieldbytheEuropeanCommissioninDirective83/189/EEC.裁帧羞蜇酎蚀气蕲部阜菘AcomprehensiveseriesofpiezoelectricstandardsarebeingdevelopedforCENELECunderBTTF63-2.TherearetwoworkinggroupsinthiscommitteeanditisWG-2thatisproducingstandardsrelatedtopiezoelectricmaterials,underthesteward

6、shipofWandaWolny.Atthetimeofwritingthefirstthreeareclosetobeingapprovedbythevariousnationalcommittees.AswithmoststandardswithinCENELECthereareEnglish,FrenchandGermanversionsofthesestandards.幔骗芟怂粮好脚先缙闫昏prEN50324-1:2001Piezoelectricpropertiesofceramicmaterialsandcomponents-Part1:DefinitionsandCla

7、ssifications楝掾媲哽阵位母盂瘁嘎蓼Thisstandardrelatestopiezoelectrictransducerceramicsforapplicationbothastransmittersandreceiversinelectroacousticsandultrasonicsoverawidefrequencyrange.Theyareusedforgenerationandtransmissionofacousticsignal