【英文标准名称】:Soundsystemequipment.Loudspeakers
【原文标准名称】:音响系统设备.扬声器
【标准号】:BSEN60268-5-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-07-31
【实施或试行日期】:2003-07-31
【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】:声学;电声器件;制动器;放大器;波幅;音频放大器;挡板;分类;连接;描述;畸变系数;电功率;电气工程;电阻抗;电学测量;电声学;电子仪器;娱乐电子学;自由场;消声室;频率;频率曲线;阻抗;输入功率;输入电压;装置;干扰场;干扰噪音;扬声器;作标记;测量;测量扩音器;测量精度;测量仪器;测量技术;安装;噪音场;非线性;性能;物理性能;功率输出;精密度;特性;额定值;调节器;电阻器;信号失真;信号;声强;声级;声压;声压级;规范(验收);标准障板;测试信号;测试;电压
【英文主题词】:Acoustics;Acoustoelectricdevices;Actuator;Amplifiers;Amplitude;Audioamplifiers;Baffles;Classification;Connections;Descriptions;Distortionfactors;Electricpower(wattage);Electricalengineering;Electricalimpedance;Electricalmeasurement;Electroacoustics;Electronicinstruments;Entertainmentelectronics;Freefields;Free-fieldrooms;Frequencies;Frequencycurve;Impedance;Inputpower;Inputvoltage;Installations;Interferencefields;Interferingnoise;Loudspeakers;Marking;Measurement;Measurementmicrophones;Measuringaccuracy;Measuringinstruments;Measuringtechniques;Mounting;Noisefields;Non-linearity;Performance;Physicalproperties;Poweroutput;Precision;Properties;Ratings;Regulator;Resistors;Signaldistortion;Signals;Soundintensity;Soundlevels;Soundpressure;Soundpressurelevel;Specification(approval);Standardbaffles;Testsignals;Testing;Voltage
【摘要】:Thisstandardappliestosoundsystemloudspeakers,treatedentirelyaspassiveelements.Loudspeakerswithbuilt-inamplifiersareexcluded.NOTE1Theterm"loudspeaker"usedinthisstandardrelatestoloudspeakerdriveunitsthemselvesandalsotoloudspeakersystems,whichcompriseoneormoreloudspeakerdriveunitsprovidedwithabaffle,enclosureorhornandsuchrelevantdevicesasbuilt-incrossoverfilters,transformersandanyotherpassiveelement.Thepurposeofthisstandardistogivethecharacteristicstobespecifiedandtherelevantmethodsofmeasurementforloudspeakersusingsinusoidalorspecifiednoiseorimpulsivesignals.NOTE2Themethodsofmeasurementgiveninthisstandardhavebeenchosenfortheirappropriatenesstothecharacteristics.NOTE3Ifequivalentresultscanbeobtainedusingothermethodsofmeasurement,detailsofthemethodsusedshouldbepresentedwiththeresults.NOTE4Thefollowingitemsareunderconsideration:-loudspeakerswithbuilt-inamplifiers;-measurementsunderconditionsotherthanfree-field,half-spacefree-fieldanddiffusefield;-measurementswithsignalsotherthansinusoidalornoiseorimpulsivesignals.
【中国标准分类号】:M72
【国际标准分类号】:33_160_50
【页数】:56P.;A4
【正文语种】:英语


【英文标准名称】:LPGequipmentandaccessories-EquippingofLPGroadtankers.
【原文标准名称】:LPG设备和附件.LPG道路油轮装备
【标准号】:NFM88-715-2006
【标准状态】:作废
【国别】:法国
【发布日期】:2006-03-01
【实施或试行日期】:2006-03-05
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:E98
【国际标准分类号】:43_080_10
【页数】:30P;A4
【正文语种】:其他