【英文标准名称】:Methodsofmeasurementforequipmentusedindigitalmicrowaveradiotransmissionsystems;part2:measurementsonterrestrialradio-relaysystems;section8:adaptiveequalizer
【原文标准名称】:数字微波无线电传输系统使用设备的测量方法第2部分:地面无线电中继系统的测量第8节:自适应均衡器
【标准号】:IEC60835-2-8-1993
【标准状态】:现行
【国别】:国际
【发布日期】:1993-05
【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/TC102
【标准类型】:()
【标准水平】:()
【中文主题词】:测量技术;无线电设备;无线电设备;无线电中继系统;电气工程;适配补偿器;微波链路;陆地的
【英文主题词】:Adaptiveequalizers;Broadcastengineering;Digital;Digitalengineering;Digitalsignals;Earthstations;Electricalengineering;Equalisers;Measurement;Measuringtechniques;Methodsformeasuring;Microwavelinks;Microwaves;Radioengineering;Radioequipment;Radiolinksystems;Radiolinks;Radioplants;Radiosystems;Radiofrequencies;Radio-relaysystems;Radiotelegraphy;Signaltransmission;Terrestrial;Transmission;Transmissionperformance
【摘要】:Themeasurementsdescribedareintendedtocharacterizethesystemequalizerinthepresenceofselectivefadingandmayalsobeperformedonsystemswithoutadaptiveequalizers.Totakeaccountofthosepropertiesofthesystemwhichareespeciallyinfl
【中国标准分类号】:M34
【国际标准分类号】:33_060_30
【页数】:37P.;A4
【正文语种】:英语
Product Code:SAE J2453
Title:Manual Transmission and Transaxle Efficiency and Parasitic Loss Measurement (STABILIZED Sep 2011)
Issuing Committee:Sae Ic Powertrain Steering Committee
Scope:Because of the intense focus on CAFE and fuel emission standards, optimization of the automobile drivetrain is imperative. In light of this, component efficiencies have become an important factor in the drivetrain decision-making process. It has therefore become necessary to develop a universal standard to judge transmission efficiency.This SAE Recommended Practice specifies the dynamometer test procedure which maps a manual transmission's efficiency. The document is separated into two parts. The first compares input and output torque throughout a specified input speed range in order to determine 'in-gear' transmission efficiency. The second procedure measures parasitic losses experienced while in neutral at nominal idling speeds and also churning losses while in gear.The application of this document is intended for passenger car and light truck.All references to transmissions throughout this document include transaxles.
基本信息
| 标准名称： | 压紧器座 |
| 中标分类： |
航空、航天 >>
航空器与航天器制造用设备 >>
夹具 |
| 替代情况： | HB 591-74 |
| 发布日期： | 1989-05-13 |
| 实施日期： | 1989-12-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2页 |
适用范围
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前言
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所属分类： 航空 航天 航空器与航天器制造用设备 夹具