IEC/TR 60854-1986 超声脉冲回声诊断设备性能的测量方法

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【英文标准名称】:Methodsofmeasuringtheperformanceofultrasonicpulse-echodiagnosticequipment
【原文标准名称】:超声脉冲回声诊断设备性能的测量方法
【标准号】:IEC/TR60854-1986
【标准状态】:现行
【国别】:国际
【发布日期】:1986
【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】:频率范围;医疗设备;测量;定义;脉冲回波;诊断设备;超声波医用器具;诊断(医学);超声波学;电气工程;诊断;超声波装置;适用性;效率;试验
【英文主题词】:Definitions;Diagnosis;Diagnosis(medical);Diagnosticequipment;Efficiency;Electricalengineering;Fitnessforpurpose;Frequencyranges;Measurement;Medicalequipment;Pulsereplies;Testing;Ultrasonicdevices;Ultrasonicmedicalapparatus;Ultrasonics
【摘要】:Definesparametersandoutlinestestmethodsformeasuringperformanceofpulse-echomedicaldiagnosticsystemsthatemploysingle-elementtransducersandoperateinthe0,5MHzto25MHzacousticfrequencyrange.Dopplerultra-soundsystemsarenotwith
【中国标准分类号】:N65
【国际标准分类号】:11_040_55
【页数】:47P;A4
【正文语种】:英语


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Product Code:SAE AS4510/1
Title:Fittings, Weld to 24掳 Cone Flareless, Fluid Connection
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope: This SAE Aerospace Standard (AS) establishes the requirements for fluid fittings that combine both weld fitting end and 24 degrees cone flareless fitting end connections for use in all types of fluid systems.Product Code:SAE ARP1870
Title:Aerospace Systems Electrical Bonding and Grounding for Electromagnetic Compatibility and Safety
Issuing Committee:Ae-4 Electromagnetic Environmental Effects (E3) Committee
Scope: This document establishes the minimum requirements for the electrical bonding and grounding of electric, avionic, armament, communication, and electronic equipment installations for aeronautical and aerospace applications. The bonding and grounding requirements specified herein are to ensure that an adequate low resistance return path for electric, avionic, armament, communication and electronic equipment is achieved which can withstand operating conditions and corrosion. This is essential for the reduction of coupling of electromagnetic fields into or out of the equipment as well as for providing electrical stability to control the currents and/or voltages caused by static charges and discharges and for suppressing the hazardous effects thereof. A prerequisite to effective control of electromagnetic interference (EMI) and the hazards of electrical effects is the establishing of a reference ground plane and the means of providing adequate connections to it. Making a connection to the ground plane is grounding, and the mechanical method of providing a low impedance union between conductors is electrical bonding.
Rationale: This document establishes the minimum requirements for the electrical bonding and grounding of electric, avionic, armament, communication, and electronic equipment installations for aeronautical and aerospace applications. The bonding and grounding requirements specified herein are to ensure that an adequate low resistance return path for electric, avionic, armament, communication and electronic equipment is achieved which can withstand operating conditions and corrosion. This is essential for the reduction of coupling of electromagnetic fields into or out of the equipment as well as for providing electrical stability to control the currents and/or voltages caused by static charges and discharges and for suppressing the hazardous effects thereof. A prerequisite to effective control of electromagnetic interference (EMI) and the hazards of electrical effects is the establishing of a reference ground plane and the means of providing adequate connections to it. Making a connection to the ground plane is grounding, and the mechanical method of providing a low impedance union between conductors is electrical bonding.