IEC/TS 61949-2007 超声学.原位表征.有限振幅超声波束原位曝光估计
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【英文标准名称】:Ultrasonics-Fieldcharacterization-In-situexposureestimationinfinite-amplitudeultrasonicbeams
【原文标准名称】:超声学.原位表征.有限振幅超声波束原位曝光估计
【标准号】:IEC/TS61949-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC87
【标准类型】:()
【标准水平】:()
【中文主题词】:调幅;定义;诊断;诊断(医疗);影响;电器;电气工程;测量;医疗作用(人体);参数;安全;安全分类;声场;测试;热;超声仪;超声
【英文主题词】:Amplitudemodulation;Definition;Definitions;Diagnosis;Diagnosis(medical);Effects;Electricalappliances;Electricalengineering;Measurement;Mechanicaleffects(humanbody);Parameters;Safety;Safetyclassification;Soundfields;Testing;Thermal;Ultrasonicdevices;Ultrasonics
【摘要】:ThisTechnicalSpecificationestablishes:?thegeneralconceptofthelimitsofapplicabilityofacousticmeasurementsinwaterresultingfromfinite-amplitudeacousticeffects;?amethodtoensurethatmeasurementsaremadeunderquasi-linearconditionsinordertominimisefinite-amplitudeeffects,whichmaybeappliedunderthefollowingconditions:?toacousticfieldsinthefrequencyrange0,5MHzto15MHz;?toacousticfieldsgeneratedbyplanesourcesandfocusingsourcesofamplitudegainupto12;?atalldepthsforwhichthemaximumacousticpressureintheplaneperpendiculartotheacousticaxisliesontheaxis;?tobothcircularandrectangularsourcegeometries;?tobothcontinuous-waveandpulsedfields;?thedefinitionofanacousticquantityappropriateforestablishingquasi-linearconditions;?athresholdvaluefortheacousticquantityasanupperlimitforquasi-linearconditions;?amethodfortheestimationofattenuatedacousticquantitiesunderconditionsofnonlinearpropagationinwater.
【中国标准分类号】:A42
【国际标准分类号】:11_040_55;17_140_50
【页数】:31P.;A4
【正文语种】:英语
【原文标准名称】:超声学.原位表征.有限振幅超声波束原位曝光估计
【标准号】:IEC/TS61949-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-11
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC87
【标准类型】:()
【标准水平】:()
【中文主题词】:调幅;定义;诊断;诊断(医疗);影响;电器;电气工程;测量;医疗作用(人体);参数;安全;安全分类;声场;测试;热;超声仪;超声
【英文主题词】:Amplitudemodulation;Definition;Definitions;Diagnosis;Diagnosis(medical);Effects;Electricalappliances;Electricalengineering;Measurement;Mechanicaleffects(humanbody);Parameters;Safety;Safetyclassification;Soundfields;Testing;Thermal;Ultrasonicdevices;Ultrasonics
【摘要】:ThisTechnicalSpecificationestablishes:?thegeneralconceptofthelimitsofapplicabilityofacousticmeasurementsinwaterresultingfromfinite-amplitudeacousticeffects;?amethodtoensurethatmeasurementsaremadeunderquasi-linearconditionsinordertominimisefinite-amplitudeeffects,whichmaybeappliedunderthefollowingconditions:?toacousticfieldsinthefrequencyrange0,5MHzto15MHz;?toacousticfieldsgeneratedbyplanesourcesandfocusingsourcesofamplitudegainupto12;?atalldepthsforwhichthemaximumacousticpressureintheplaneperpendiculartotheacousticaxisliesontheaxis;?tobothcircularandrectangularsourcegeometries;?tobothcontinuous-waveandpulsedfields;?thedefinitionofanacousticquantityappropriateforestablishingquasi-linearconditions;?athresholdvaluefortheacousticquantityasanupperlimitforquasi-linearconditions;?amethodfortheestimationofattenuatedacousticquantitiesunderconditionsofnonlinearpropagationinwater.
【中国标准分类号】:A42
【国际标准分类号】:11_040_55;17_140_50
【页数】:31P.;A4
【正文语种】:英语
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