ISO 22090-3-2004 船舶和海上技术.传递航向装置(THDs).第3部分:GNSS原则

上一篇: NF F41-020-5-2004 铁路设施.固定设备.直流开关装置.第5部分:直流系统专用电涌放电器和低电压限制器
下一篇: ISO 22090-2-2004 船舶和海上技术.传递航向装置(THDs).第2部分:地磁原则

【英文标准名称】:Low-frequencycableswithpolyolefininsulationandmoisturebarrierpolyolefinsheath.Part3:Unittype,unfilled,moisturebarrierpolyethylenesheathedcableswithcopperconductorsandsolidorcellularinsulation
【原文标准名称】:聚烯烃绝缘和隔潮层聚烯烃护套低频电缆第3部分:铜芯、实心或泡沫聚烯烃绝缘、非填充式阻潮层聚乙烯护套电缆修改1
【标准号】:IEC60708-3AMD1-1983
【标准状态】:作废
【国别】:国际
【发布日期】:1983
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC46C
【标准类型】:()
【标准水平】:()
【中文主题词】:绝缘电缆;聚烯烃;铜导线;电气工程;低频电缆;电缆护套;低频;绝缘
【英文主题词】:cablesheaths;electricalengineering;lowfrequencies;low-frequencycables;polyolefins;copperconductors;insulations;insulatedcables
【摘要】:
【中国标准分类号】:K13
【国际标准分类号】:29_060_20
【页数】:3P;A4
【正文语种】:英语


Product Code:SAE ARP958
Title:Electromagnetic Interference Measurement Antennas; Standard Calibration Method
Issuing Committee:Ae-4 Electromagnetic Environmental Effects (E3) Committee
Scope: This SAE Aerospace Recommended Practice (ARP) outlines a standard method for the checkout and calibration of electromagnetic interference measurement antennas. Its primary application is for use when measuring a source 1 m from the antenna in a shield room versus a source at a greater distance (far field). This is the typical distance used in performing military EMC testing. Thus, this is a method of calibration. Shield room characteristics are not considered. It does not address an unknown distributed source. Yet it is close to reality since it is based on another antenna that represents a distributed source. This document presents a technique to determine antenna factors for antennas used primarily in performing measurements in accordance with 2.1 and 2.2. The purpose of Revision B is to include the calibration of other antennas, such as small loop antennas that are also specified for use in these same references. Revision D includes a specific procedure for loop antennas that are separated by 1 m from the device under test. The Scope of Revision E is as follows: revision of main calibration method; update of process to reflect modern test equipment (i.e., network analyzers); inclusion of measurement uncertainty estimates; and resolution of conflicts between main method and alternative method suggested in Appendix C
Rationale: This SAE Aerospace Recommended Practice (ARP) outlines a standard method for the checkout and calibration of electromagnetic interference measurement antennas. Its primary application is for use when measuring a source 1 m from the antenna in a shield room versus a source at a greater distance (far field). This is the typical distance used in performing military EMC testing. Thus, this is a method of calibration. Shield room characteristics are not considered. It does not address an unknown distributed source. Yet it is close to reality since it is based on another antenna that represents a distributed source. This document presents a technique to determine antenna factors for antennas used primarily in performing measurements in accordance with 2.1 and 2.2. The purpose of Revision B is to include the calibration of other antennas, such as small loop antennas that are also specified for use in these same references. Revision D includes a specific procedure for loop antennas that are separated by 1 m from the device under test. The Scope of Revision E is as follows: revision of main calibration method; update of process to reflect modern test equipment (i.e., network analyzers); inclusion of measurement uncertainty estimates; and resolution of conflicts between main method and alternative method suggested in Appendix C