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IEC 60118-0-1983 助听器第0部分:电声特性的测量

作者:标准资料网 时间:2024-04-20 12:10:00  浏览:9266   来源:标准资料网
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【英文标准名称】:Measurementofelectroacousticalcharacteristics
【原文标准名称】:助听器第0部分:电声特性的测量
【标准号】:IEC60118-0-1983
【标准状态】:现行
【国别】:国际
【发布日期】:1983
【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/TC29
【标准类型】:()
【标准水平】:()
【中文主题词】:声学;声学测量;定义;电气工程;特性;检验;测量仪器;测量;电声器件;试验条件;助听器;电声效应;计数检查
【英文主题词】:Acousticmeasurement;Acousticpropertiesandphenomena;Acoustics;Acoustoelectricdevices;Acoustoelectriceffects;Curves(geometry);Definitions;Electricalengineering;Electroacoustics;Frequencies;Frequencycurve;Hearingaids;Informationinterchange;Inspection;Inspectionbyattributes;Measurement;Measurementconditions;Measuringequipment;Measuringinstruments;Measuringtechniques;Properties;Representations;Simulators;Sound;Soundfields;Soundpressure;Soundpressurelevel;Testing;Testingconditions;Transmissioncharacteristics;Voicefrequency
【摘要】:Describesthemeasurementofphysicalperformancecharacteristicsofair-conductionhearingaidsbasedonafree-fieldtechniqueandmeasuredwithanearsimulator.Establishesmethodsofmeasurementtoassessthecharacteristicsofhearingaids.Thisse
【中国标准分类号】:L31
【国际标准分类号】:11_180_15
【页数】:50P.;A4
【正文语种】:英语


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【英文标准名称】:StandardTestMethodforOn-LineMeasurementofpH
【原文标准名称】:pH1在线测量用标准试验方法
【标准号】:ASTMD6569-2005
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:直线;测量;在线;PH;pH值测定;试验方法;测试
【英文主题词】:Lines;Measurement;Online;pH;pHmeasurement;Testmethods;Testing
【摘要】:
【中国标准分类号】:G04
【国际标准分类号】:71_040_50
【页数】:7P;A4
【正文语种】:英语


【英文标准名称】:Informationtechnology-OpenSystemsInterconnection-VirtualTerminalBasicClassService
【原文标准名称】:信息技术.开放系统互连.虚拟终端基本类服务
【标准号】:ISO/IEC9040-1997
【标准状态】:现行
【国别】:国际
【发布日期】:1997-06
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:网络互连;信息交流;信息技术;通信规程;信息交换;数据处理;定义;开放系统互连
【英文主题词】:Communicationprocedures;Dataprocessing;Definitions;Informationexchange;Informationinterchange;Informationtechnology;Networkinterconnection;Opensystemsinterconnection;OSI
【摘要】:ThisInternationalStandarddefines,inanabstractway,theexternallyvisibleBasicClassVirtualTerminalServicewithintheOSIApplicationLayerintermsofa)amodeldefiningtheinteractionbetweenusersoftheservice;b)theprimitiveactionsandeventsoftheservice;c)theparameterdataassociatedwitheachprimitiveactionandevent;d)therelationshipbetween,andthevalidsequencesof,theseactionsandevents.TheservicedefinedinthisInternationalStandardisthatwhichisprovidedbytheOSIBasicClassVirtualTerminalProtocol(inconjunctionwiththeAssociationControlServiceElementandthePresentationService)andwhichmaybeusedbyanyuserincludingotherApplicationServiceElements.Therela-tionshipbetweenthestandardsforVirtualTerminalService,VirtualTerminalProtocol,ACSE,PresentationLayerServiceandtheuseroftheVirtualTerminalServiceisshowninfigure1.ThisInternationalStandardalsodefinestwostandarddefaultvirtualterminalenvironmentprofilesanddescribestheformofregisteredvirtualterminalenvironmentprofilesandcontrolobjects.Virtualterminalenvironmentprofilesdefinesetsofvirtualterminalenvironmentparametersforuseintheestab-lishmentofvirtualterminalassociationsandsubsequentne-gotiation.ThisInternationalStandardalsodefinesastructureofASN.1ObjectIdentifiersfortheobjectsdefinedinthisInternationalStandardandforuseinaregisterofvirtualterminalobjects.ThisInternationalStandarddoesnotspecifyindividualimple-mentationsorproducts,nordoesitconstraintheimplementa-tionofentitiesandinterfaceswithinacomputersystem.Thereis,therefore,norequirementforconformancetothisInterna-tionalStandard.ThisInternationalStandardappliestointeractiveapplicationsrequiringterminalorientedcommunicationexpressedintermsofthetransmissionandmanipulationofgraphicalimageshavingthefollowingcharacteristics:e)theimagesarecomposedofcharacter-boxgraphicele-mentsorganisedintoaone,twoorthreedimensionalstructure;f)attributesmaybeassociatedwithanygraphicelementtoqualifyitsmodeofdisplay.Controlinformationforthecommunicationcanbemodelledusingvirtualterminalcontrolobjects,andmultipledevicescanbemodelledusingvirtualterminaldeviceobjectslinkedtotheothervirtualterminalobjects.
【中国标准分类号】:L79
【国际标准分类号】:35_100_70
【页数】:86P.;A4
【正文语种】:英语



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