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SAE AMS5337 Steel, Maraging, Investment Castings, 18.5ni 9.0co 5.0mo 0.70ti 0.12al, Vacuum Melted Homogenized, Overaged,

作者:标准资料网 时间:2024-05-15 01:48:58  浏览:8271   来源:标准资料网
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Product Code:SAE AMS5337
Title:Steel, Maraging, Investment Castings, 18.5ni 9.0co 5.0mo 0.70ti 0.12al, Vacuum Melted Homogenized, Overaged, and Solution Heat Treated
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope:This specification covers an alloy steel in the form of investment castings.
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【英文标准名称】:Electroacoustics-Simulatorsofhumanheadandear-Acousticcouplerforthecalibrationofsupra-auralearphonesusedinaudiometry
【原文标准名称】:电声学.人头和耳模拟器.用于测听计的超级听力耳机校正用听力耦合器
【标准号】:BSEN60318-3-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-12-15
【实施或试行日期】:1998-12-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:仿真耳;耳;模拟;电声器件;声学测量;声学设备;头戴送受话器;耦合器;试验设备;听力测定;声学;耳机;校正;电连接器
【英文主题词】:Acousticcouplers;Acoustics;Audiometers;Audiometry;Calibration;Couplers;Definition;Definitions;Dimensions;Earphones;Electricalengineering;Electroacoustics;Frequencies;Headphones;Hearingaids;Lossofhearing;Pressureforce;Pure-toneaudiometers;Referencelevels;Simulators;Soundintensity;Soundpressurelevel;Vibrationengineering
【摘要】:ThisInternationalStandarddescribesanacousticcouplerforloadingsupra-auralaudiometricearphonesasspecifiedinISO389-1withaspecifiedacousticimpedance,whencalibratingaudiometers,inthefrequencyrangeof125Hzto8000Hz.Thesoundpressuredevelopedbyanearphoneisnot,ingeneral,thesameinthecouplerasinaperson'sear.However,theIECrecommendsitsuseasasimpleandreadymeansfortheexchangeofspecificationsonaudiometersandforthecalibrationofspecifiedearphonesusedinaudiometry.note:1)Tobepublished.
【中国标准分类号】:L31
【国际标准分类号】:17_140_50
【页数】:14P.;A4
【正文语种】:英语



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