SAE J1559 Measurement of Solar Heating Effect
作者:标准资料网 时间:2024-04-29 22:23:09 浏览:9919
来源:标准资料网
Product Code:SAE J1559
Title:Measurement of Solar Heating Effect
Issuing Committee:Hftc6, Operator Accommodation
Scope: This SAE Recommended Practice is applicable to off-road, self-propelled work machines from Section 1 to 5 of SAE J1116 when equipped with an operator enclosure system. This document provides a procedure for applying a simulated solar load while performing A/C tests in laboratory and determining the radiant heat energy affecting an operator enclosure system by an artificial light source or a natural solar load.
【英文标准名称】:Informationtechnology-Officeequipment-Methodformeasuringthroughputclass1andclass2printers(ISO/IEC10561:1997)
【原文标准名称】:信息技术.办公室设备.1类和2类打印机性能的测量方法
【标准号】:DINISO/IEC10561-1998
【标准状态】:作废
【国别】:德国
【发布日期】:1998-08
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验持续时间;试验;商业信函;特性;效率;性能试验;信息处理;信息技术;比较;试验条件;性能;办公装置;表(数据);打印机;数据处理;办公室设备;原始件;办公机器;描述;书画;数据系统工程;电子数据处理
【英文主题词】:Businessletters;Comparison;Dataprocessing;Datasystemsengineering;Descriptions;EDP;Efficiency;Graphicarts;Informationprocessing;Informationtechnology;Officeequipment;Officemachines;Officesystem;Originals;Performance;Performancetesting;Printers;Printingequipment;Properties;Tables(data);Testduration;Testsamples;Testing;Testingconditions
【摘要】:Thedocumentspecifiesamethodformeasuringthethroughputofclass1andclass2printersasdefinedinISO/IEC11160-1.Thedocumentspecifiesthreedifferenttestpattern:astandardbusinessletter,aspreadsheet,agraphicpattern.Inaddition,thedocumentdefinesamethodforaperformancetestandoneforanendurancetest.#,,#
【中国标准分类号】:L63
【国际标准分类号】:35_180
【页数】:9P.;A4
【正文语种】:德语
【英文标准名称】:Methodsofmeasurementforequipmentusedindigitalmicrowaveradiotransmissionsystems-Measurementsonterrestrialradio-relaysystems-Servicechannels
【原文标准名称】:数字微波无线电发射系统使用设备的测量方法.地面无线电中继系统的测量.业务信道
【标准号】:BSEN60835-2-9-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-01-15
【实施或试行日期】:1997-01-15
【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】:模拟;通道;通信系统;定义;定义(术语);数字的;数字工程;数字信号;地面站;电气工程;电气连接件用接口;测量;测量技术;微波链路;无线电信道;无线电电路;无线电工程;无线电器材;无线电通信链路;无线电中继系统;服务终端设备;服务设施;信号;通信;陆地的;传输;传输性能;传输系统
【英文主题词】:Analogue;Channels;Communicationsystems;Definition;Definitions;Digital;Digitalengineering;Digitalsignals;Earthstations;Electricalengineering;Interfacesofelectricalconnections;Measurement;Measuringtechniques;Microwavelinks;Radiochannels;Radiocircuits;Radioengineering;Radioequipment;Radiolinks;Radio-relaysystems;Serviceterminalequipment;Services;Signals;Telecommunication;Terrestrial;Transmission;Transmissionperformance;Transmissionsystems
【摘要】:ThissectionofIEC835-2dealswithmeasurementspertainingtotheservicechannelsusedindigitalmicrowaveradio-relaysystems.Indigitalradio-relaysystems,twobasicmethodsarecommonlyusedforthetransmissionofservicechannelsignals(thatisvoice,supervisoryandcontrolsignals)(seeannexA,ref.[6]).Thefirsttransmissionmethodusesanaloguetransmissiontechniqueswherethei.f.orr.f.carriersignalofthedigitalmodulatorisdirectlyfrequency-modulatedbytheanalogueservicechannelsignal,whichisthenrecoveredatthereceiveendbyanf.m.demodulator(forexampleinthecarrierrecoverycircuitofacoherentdigitaldemodulator).Inthesecondmethodoftransmission,digitaltransmissionisusedandtheservicechannelsignalistransmittedintheformofseparatebitsinsertedintothemainbitstreambyamultiplexer(possiblytogetherwithabitstreamcarryingadditionalinformation).Fordigitaltransmission,theservicechannelsignalmaybeeitherananaloguesignalwhichisdigitallyencodedforbitinsertionoradigitalsignal,inwhichcasesuitablecodeconversionisnormallyappliedinordertoconvertthelinecodeintoacodesuitablefortheradioequipment.Atthereceiveend,ademultiplexerisusedtorecovertheservicechannelbitsandthussupply,aftersuitabledecodingorcodeconversion,theservicechanneloutputsignal.Normally,morethanoneservicechannelistransmitted.Sometimesanadditionalbitstream(forexamplealarmcontrolsignalsforprotectionswitchingandsupervisoryequip-ment)mayalsobetransmitted.Suitablemultiplexinganddemultiplexingequipmentisthenused,suchasfrequencydivisionmultiplexingforanaloguetransmission,andtimedivisionmultiplexingfordigitaltransmission.Theuseoftimedivisionmultiplexingalsoallowsthesimultaneousdigitaltransmissionofanalogueanddigitalservicechannelsignals.Figure1showsthesimultaneousapplicationofalltheabovepossibleservicechanneltransmissionsystems.However,inagivenradio-relaylink,onlyoneortwoofthesesystemsisusedatatime.
【中国标准分类号】:M36
【国际标准分类号】:33_060_30
【页数】:24P.;A4
【正文语种】:英语
