BS EN 60942-2003 电声学.音响校准器

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【英文标准名称】:Electroacoustics-Soundcalibrators
【原文标准名称】:电声学.音响校准器
【标准号】:BSEN60942-2003
【标准状态】:现行
【国别】:英国
【发布日期】:2003-07-10
【实施或试行日期】:2003-07-10
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电声器件;电声学;环境条件;测量仪器;声级;音响校准器;畸变系数;声压级;操作说明书;电气工程;声学测量;规范(验收);极限偏差;声发生器;信号失真;频率;声学;声级表;作标记;声学设备;定义
【英文主题词】:
【摘要】:ThisInternationalStandardspecifiestheperformancerequirementsforthreeclassesofsoundcalibrator:laboratorystandard(classLS),class1andclass2.TolerancelimitsaresmallestforclassLSandgreatestforclass2instruments.ClassLSsoundcalibratorsarenormallyusedonlyinthelaboratory;class1andclass2areconsideredassoundcalibratorsforfielduse.Aclass1soundcalibratorisprimarilyintendedforusewithaclass1soundlevelmeterandaclass2soundcalibratorprimarilywithaclass2soundlevelmeter,asspecifiedinIEC61672-1.ThetolerancelimitsforclassLSsoundcalibratorsarebasedontheuseofalaboratorystandardmicrophone,asspecifiedinIEC61094-1,fordemonstrationsofconformancetotherequirementsofthisstandard.Thetolerancelimitsforclass1andclass2soundcalibratorsarebasedontheuseofaworkingstandardmicrophone,asspecifiedinIEC61094-4,fordemonstrationsofconformancetotherequirementsofthisstandard.Amulti-levelandmulti-frequencysoundcalibratorhasthesameclassdesignationforallsoundpressurelevelandfrequencycombinationsforwhichtheinstructionmanualstatesthattheinstrumentconformstotherequirementsofthisstandard.Thisstandarddoesnotincluderequirementsforequivalentfree-fieldorrandom-incidencesoundpressurelevels,suchasmaybeusedintheoverallsensitivityadjustmentofasoundlevelmeter.Asoundcalibratormayprovideotherfunctions,forexample,tonebursts.Requirementsfortheseotherfunctionsarenotincludedinthisstandard.
【中国标准分类号】:L31
【国际标准分类号】:17_140_50
【页数】:94P;A4
【正文语种】:英语