【英文标准名称】:Ultrasonics-Focusingtransducers-Definitionsandmeasurementmethodsforthetransmittedfields
【原文标准名称】:超声波.聚焦传感器.发送场的定义和测量方法
【标准号】:IEC61828-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-07
【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/TC87
【标准类型】:()
【标准水平】:()
【中文主题词】:定义;电气设备;电气工程;焦点;调焦点;测量;测量技术;医疗设备;医疗技术学;输出测定;电功率测量;特性;安全;声场;试验;传感器;饱和电抗器;传输;传输特性;超声波装置;超声波医用器具;超声波学
【英文主题词】:Definitions;Electricalappliances;Electricalengineering;Focalpoint;Focusing;Measurement;Measuringtechniques;Medicalequipment;Medicaltechnology;Outputdetermination;Powermeasurement(electric);Properties;Safety;Soundfields;Testing;Transducers;Transductors;Transmission;Transmissioncharacteristics;Ultrasonicdevices;Ultrasonicmedicalapparatus;Ultrasonics
【摘要】:ThisInternationalStandard?providesdefinitionsforthetransmittedfieldcharacteristicsoffocusingtransducersforapplicationsinmedicalultrasound;?relatesthesedefinitionstotheoreticaldescriptions,design,andmeasurementofthetransmittedfieldsoffocusingtransducers;?givesmeasurementmethodsforobtainingdefinedcharacteristicsoffocusingtransducers;?specifiesbeamaxisalignmentmethodsappropriateforfocusingtransducers.ThisInternationalStandardrelatestofocusingultrasonictransducersoperatinginthefrequencyrangeappropriatetomedicalultrasound(0,5MHzto40MHz)forboththerapeuticanddiagnosticapplications.Itshowshowthecharacteristicsofthetransmittedfieldoftransducersmaybedescribedfromthepointofviewofdesign,aswellasmeasuredbysomeonewithnopriorknowledgeoftheconstructiondetailsofaparticulardevice.Theradiatedultrasoundfieldforaspecifiedexcitationismeasuredbyahydrophoneineitherastandardtestmedium(forexample,water)orinagivenmedium.Thestandardappliesonlytomediawherethefieldbehaviourisessentiallylikethatinafluid(i.e.wheretheinfluenceofshearwavesandelasticanisotropyissmall),includingsofttissuesandtissue-mimickinggels.Anyaspectsofthefieldthataffecttheirtheoreticaldescriptionorareimportantindesignarealsoincluded.Thesedefinitionswouldhaveuseinscientificcommunications,systemdesignanddescriptionoftheperformanceandsafetyofsystemsusingthesedevices.Thisstandardincorporatesdefinitionsfromotherrelatedstandards1wherepossible,andsuppliesnew,morespecificterminology,bothfordefiningfocusingcharacteristicsandforprovidingabasisformeasurementofthesecharacteristics.
【中国标准分类号】:N65
【国际标准分类号】:01_040_17;17_140_50
【页数】:103P.;A4
【正文语种】:英语