ASTM C 752-1988 核纯级的银铟镉合金
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来源:标准资料网
【英文标准名称】:Nuclear-GradeSilver-Indium-CadmiumAlloy
【原文标准名称】:核纯级的银铟镉合金
【标准号】:ASTMC752-1988
【标准状态】:作废
【国别】:美国
【发布日期】:1988
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:合金;核能;铟;镉;银;核技术
【英文主题词】:alloys;cadmium;nucleartechnology;nuclearenergy;silver;indium
【摘要】:
【中国标准分类号】:F46
【国际标准分类号】:77_120_00
【页数】:2P;A4
【正文语种】:英语
Product Code:SAE AMS3970
Title:Carbon Fiber Fabric Repair Prepreg, 125Mdc (250Mdf) Vacuum Curing Part 0 - Introduction
Issuing Committee:Ams Cacrc Commercial Aircraft Composite Repair Committee
Scope:AMS 3970 gives information about qualification rules and the relation between the different specification parts involved, such as the Technical Specification (TS), Material Specification (MS), and Purchasing Specification (PS). The link to the material qualification and qualified products is presented.【英文标准名称】:Ultrasonics—Hydrophones—Part2:Calibrationforultrasonicfieldsupto40MHz
【原文标准名称】:超音波学.水听器.第2部分:超音波场小于40MHz的校准
【标准号】:BSEN62127-2-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2008-05-30
【实施或试行日期】:2008-05-30
【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】:声学测量;校正;特性记述;特性;定义;描述;电气工程;电声学;电医学;音域测量;频率;频率范围;水听器;测量;测量条件;测量技术;医学科学;压电的;灵敏度;声场;声压;声换能器;规范(验收);超声波装置;超音频;超声检验;超声波学
【英文主题词】:Acousticmeasurement;Calibration;Characterisations;Characteristics;Definition;Definitions;Descriptions;Electricalengineering;Electroacoustics;Electromedicine;Fieldmeasurement;Frequencies;Frequencyranges;Hydrophones;Measurement;Measurementconditions;Measuringtechniques;Medicalsciences;Piezoelectric;Sensitivity;Soundfields;Soundpressure;Soundtransducer;Specification(approval);Ultrasonicdevices;Ultrasonicfrequencies;Ultrasonictesting;Ultrasonics
【摘要】:ThispartofIEC62127specifies:?absolutehydrophonecalibrationmethods;?relative(comparative)hydrophonecalibrationmethods.Recommendationsandreferencestoacceptedliteraturearemadeforthevariousrelativeandabsolutecalibrationmethodsinthefrequencyrangecoveredbythisstandard.Thisstandardisapplicableto?hydrophonesusedformeasurementsmadeinwaterandintheultrasonicfrequencyrangeupto40MHz;NOTE1Althoughsomephysiotherapymedicalapplicationsofmedicalultrasoundaredevelopingwhichoperateinthefrequencyrange40kHzto100kHz,theprimaryfrequencyrangeofdiagnosticimagingremainsabove2MHz.Ithasrecentlybeenestablishedthat,eveninthelattercase,thehydrophoneresponseatsubstantiallylowerfrequenciescaninfluencemeasurementsmadeofkeyacousticparameters[1].?hydrophonesemployingcircularpiezoelectricsensorelements,designedtomeasurethepulsedwaveandcontinuouswaveultrasonicfieldsgeneratedbyultrasonicequipment;NOTE2Somehydrophonescanhavenon-circularactiveelements,arisingfromslightdeviationsfromacircularstructurecaused,forexamplebyelectrodestructure,orconversely,theactiveelementscanactuallybesquares.Theclauseswithinthisstandardremainvalid,although,inthesecases,specialattentionshouldbepaidtothedirectionalresponseandtotheeffectiveradiioftheactiveelementthroughvariousaxesofrotation.?hydrophoneswithorwithoutahydrophonepre-amplifier.
【中国标准分类号】:C41
【国际标准分类号】:17_140_50
【页数】:86P.;A4
【正文语种】:英语
