JB 4189-1986 电水壶
作者:标准资料网 时间:2024-05-11 19:38:04 浏览:9664
来源:标准资料网
基本信息
标准名称: | 电水壶 |
中标分类: |
轻工、文化与生活用品 >>
家用电器、日用机具 >>
家用电热器具 |
发布日期: | |
实施日期: | 2003-03-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 9页 |
适用范围
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前言
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引用标准
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所属分类: 轻工 文化与生活用品 家用电器 日用机具 家用电热器具
【英文标准名称】:Medicalelectricalequipment.CharacteristicsofdigitalX-rayimagingdevices.Determinationofthedetectivequantumefficiency
【原文标准名称】:医疗电气设备.数字X光成像设备特性.量子检测效率的确定
【标准号】:BSEN62220-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-02-02
【实施或试行日期】:2004-02-02
【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】:临床检查器械;定义(术语);诊断(医学);诊断设备;数字的;数字信号;显示装置;电气工程;电气设备;医用电气设备;电医学;电子设备及元件;医疗设备;医疗放射照相术;医疗技术学;量子效率;辐射学;放射疗法;规范(验收);术语学;X射线仪;X射线图象增强器;X射线
【英文主题词】:Clinicalinvestigationinstruments;Definitions;Diagnosis(medical);Diagnosticequipment;Digital;Digitalsignals;Displayunits;Electricalengineering;Electricalequipment;Electricalmedicalequipment;Electromedicine;Electronicequipmentandcomponents;Medicalequipment;Medicalradiography;Medicaltechnology;Quantumefficiency;Radiology;Radiotherapy;Specification(approval);Terminology;X-rayapparatus;X-rayimageintensifiers;X-rays
【摘要】:ThispartofIEC62220specifiesthemethodforthedeterminationoftheDETECTIVEQUANTUMEFFICIENCY(DQE)ofDIGITALX-RAYIMAGINGDEVICESasafunctionofexposureandofSPATIALFREQUENCYfortheworkingconditionsintherangeofthemedicalapplicationasspecifiedbytheMANUFACTURER.ThispartofIEC62220isapplicabletoprojectionDIGITALX-RAYIMAGINGDEVICESproducingIMAGESindigitalformatthatareusedformedicaldiagnosis.ItisrestrictedtoDIGITALX-RAYIMAGINGDEVICESthatareusedforradiographicimaging,suchasCRsystems,selenium-basedsystems,flatpaneldetectors,opticallycoupledCCDdetectors,anddigitalX-RAYIMAGEINTENSIFIERSusedforsingleexposures.ThispartofIEC62220isnotapplicableto-DIGITALX-RAYIMAGINGDEVICESintendedtobeusedinmammographyorindentalradiography;-COMPUTEDTOMOGRAPHY:-systemsinwhichtheX-rayfieldisscannedacrossthepatient;and-devicesfordynamicimaging(whereseriesofimagesareacquired,asinfluoroscopicorcardiacimaging).NOTEThedevicesnotedaboveareexcludedbecausetheycontainmanyparameters(forinstance,beamqualities,geometry,timedependence,etc.)whichdifferfromthoseimportantforgeneralradiography.Itisintendedtotreatsomeofthesetechniquesinseparatestandardsashasbeendoneforothertopics,forinstanceforspeedandcontrast,inIECandISOstandards.
【中国标准分类号】:C43
【国际标准分类号】:11_040_50
【页数】:32P;A4
【正文语种】:英语
Product Code:SAE AS3101
Title:Bolt, Machine - Hexagon Head, PD Shank, Cres AMS 5731, .3125-24 UNJF-3A
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:No scope available.