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IEC 61549 AMD 3-2012 多功能灯.修改件3

作者:标准资料网 时间:2024-05-08 12:51:48  浏览:8927   来源:标准资料网
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【英文标准名称】:Miscellaneouslamps;Amendment3
【原文标准名称】:多功能灯.修改件3
【标准号】:IEC61549AMD3-2012
【标准状态】:现行
【国别】:国际
【发布日期】:2012-07
【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/SC34A
【标准类型】:()
【标准水平】:()
【中文主题词】:名称与符号;尺寸规格;电气工程;电性能;电性质和电现象;闪光灯;荧光灯;图形符号;卤素灯;点火变压器;照明工程;白炽灯;索引图;灯;寿命;照明设备;标志;金属蒸气灯;汽车;编号;编号体系;操作;可辩性;可置换性;安全性;信号灯;特种设计;符号;技术数据单;终端标志;试验;振动试验;警告标志;警告;氙
【英文主题词】:Designations;Dimensions;Electricalengineering;Electricalproperties;Electricalpropertiesandphenomena;Flashlamps;Fluorescentlamps;Graphicsymbols;Halogenlamps;Ignitiontransformers;Illuminationengineering;Incandescentlamps;Keyplans;Lamps;Life(durability);Lightingsystems;Marking;Metal-vapourlamps;Motorvehicles;Numbering;Numberingsystems;Operation;Photometric;Replaceability;Safety;Signallamps;Specialdesign;Symbols;Technicaldatasheets;Terminalmarkings;Testing;Vibrationtests;Warningnotices;Warnings;Xenon
【摘要】:
【中国标准分类号】:K71
【国际标准分类号】:29_140_20;29_140_30
【页数】:9P;A4
【正文语种】:英语


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Product Code:SAE AIR1672
Title:Practical Methods to Obtain Free-Field Sound Pressure Levels From Acoustical Measurements Over Ground Surfaces
Issuing Committee:A-21 Aircraft Noise Measure Noise Aviation Emission Modeling
Scope: Acquisition of free-field data is of practical significance in the field of aeronautical acoustics. The need for free-field data includes (but is not restricted to) the following: comparison of acoustical data obtained from the same engine under various measurement conditions; comparison of the results obtained from models with those from an engine on a test stand; comparison of noise measurements made on the same engine under static and in-flight conditions; design of test facilities; standardization of techniques for 'in situ' acoustical measurements; spectral decomposition to isolate the contribution of different sources to the total noise; and prediction of aircraft noise on the basis of methods which, generally, provide free-field data. There is an increasing tendency to test full-scale engine components and scale models in anechoic test facilities that provide free-field conditions. This AIR complements this work by identifying those methods in current use which provide free-field acoustic data for measurements on engines under static conditions in the presence of a ground surface. Separate Appendices to this AIR describe different methods for noise measurement in the field that conform with the state-of-the-art to a certain extent. That is, each method has generally been systematically used by at least oe free-field conditions. This AIR complements this work by identifying those methods in current use which provide free-field acoustic data for measurements on engines under static conditions in the presence of a ground surface. Separate Appendices to this AIR describe different methods for noise measurement in the field that conform with the state-of-the-art to a certain extent. That is, each method has generally been systematically used by at least one organization and has been substantiated by data obtained from at least one test site.ne organization and has been substantiated by data obtained from at least one test site.【英文标准名称】:Railvehicles;gratesforfootsteps,runningboards,workplatformsandshoescrapers
【原文标准名称】:有轨车辆.脚蹬、踏脚板、工作平台和鞋刮泥板的格栅
【标准号】:DIN1580-1989
【标准状态】:作废
【国别】:德国
【发布日期】:1989-05
【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】:砝码;栅格;形状;材料;钢;工作架;踏步平板;铁路车辆零部件;铁道车辆;尺寸
【英文主题词】:Dimensions;Grilles;Materials;Railwayapplications;Railwayvehiclecomponents;Railwayvehicles;Railways;Shape;Staging;Steels;Treads(stairs);Weights
【摘要】:
【中国标准分类号】:S34
【国际标准分类号】:45_040
【页数】:3P;A4
【正文语种】:德语



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