BS EN 2591-603-2002 Elements of electrical and optical connection - Test methods - Optical elements - Change of power distribution《电气和光学连接元件 试验方法 光学元件 功率分配的变化》.pdf

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1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-603:2002 Elements of electrical and optical connection Test methods Part 603: Optical elements Change of power distribution The European Standard EN 2591-603:2002 has the status of a British Standard ICS 49.060 BS EN 2591-603:2002 This British Standard, h

2、aving been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 11 July 2002 BSI 11 July 2002 ISBN 0 580 40040 9 National foreword This British Standard is the official English langua

3、ge version of EN 2591-603:2002. The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to Subcommittee ACE/6/10, Aerospace Fibre optic systems and equipment which has the responsibility to: A list of organizations

4、represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Cor

5、respondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does

6、not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and prom

7、ulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publica

8、tion Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN2591603 June2002 ICS49.060 Englishversion AerospaceseriesElementsofelectricalandopticalconnection TestmethodsPart603:OpticalelementsChangeofpower distribution SriearospatialeOrganesdeconnexionlectriqueet optiqueMthodesdessai

9、sPartie603:Organesoptiques Modifcationdeladistributiondepuissance LuftundRaumfahrtElektrischeundoptische VerbindungselementePrfverfahrenTeil603:Optische ElementenderungderLeistungsverteilungskurve ThisEuropeanStandardwasapprovedbyCENon8February2002. CENmembersareboundtocomplywiththeCEN/CENELECIntern

10、alRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficial

11、versions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germ

12、any,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyform

13、andbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN2591603:2002EEN2591603:2002(E) 2 Foreword Thisdocument(EN2591603:2002)hasbeenpreparedbytheEuropeanAssociationofAerospace Manufacturers(AECMA). AfterenquiriesandvotescarriedoutinaccordancewiththerulesofthisAssociation,thisStandardhas rece

14、ivedtheapprovaloftheNationalAssociationsandtheOfficialServicesofthemembercountriesof AECMA,priortoitspresentationtoCEN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical textorbyendorsement,atthelatestbyDecember2002,andconflictingnationalstandardsshallbe w

15、ithdrawnatthelatestbyDecember2002. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark, Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Nor

16、way, Portugal,Spain,Sweden,SwitzerlandandtheUnitedKingdomEN2591603:2002(E) 3 1 Scope Thisstandardspecifiesamethodofdetectingchangesinthepowerdistributionwhenusingoptical connectionelements(includingpermanentconnections)withopticalcontactsandfibreopticcouplers. Thesechangesareattributabletomodeselect

17、ivelossmechanismsorunevendistributionofcoupledmodes. ItshallbeusedtogetherwithEN2591100. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreferenceprovisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafte

18、r.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe latesteditionofthepublicationreferredtoapplies. EN2591100 AerospaceseriesElementsofelectricalandopticalconnectionTestmethods

19、 Part100:General 1) EN2591601 AerospaceseriesElementsofelectricalandopticalconnectionTestmethods Part601:OpticalelementsInsertionloss 3 Preparationofspecimens 3.1 Specimensshallbefittedwithnormalaccessories,mountedandterminatedinaccordancewith theproductstandard.Cavitieswithunterminatedcontactsshall

20、havefillerplugsfitted(whereapplicable). Foropticalconnectionelementsandsplices,“n“fibrespecimensshallbepreparedinaccordancewiththe configurationofEN2591601,method1. Forcouplers,“n“specimensshallbepreparedinaccordancewiththeconfigurationofEN2591601, method2. 3.2 Unlessindicatedinthetechnicalspecifica

21、tion,thefollowingdetailsshallbespecified: typeandlengthofcable/fibre; permittedchangeinthepowerdistributioncurve. 4 Apparatus Itshallcomprise: aLightLaunchSystem(LLS)asdefinedinEN2591100; aLightDetectorSystem(LDS)asdefinedinEN2591100. Adetectorwhichmaybeasinglediodeordetectormountedonagoniometerarra

22、ngement(seefigure1) shallenablemeasurementstobemadeinatleasttwoaxes. Thedetectorsystemshallbecompatiblewiththespatialresolutionoftherequiredopticalpowerdistribution. 1) PublishedasAECMAPrestandardatthedateofpublicationofthisstandardEN2591603:2002(E) 4 Figure1 Othersystemsmayalsobeconsidered,forexamp

23、leacoupledchargedevicearray,camera,videoanalyser, etc.(seefigure2). Theradiationemergingfromtheopticalfibreshallbemeasuredusingadetectorsystemwhichallowsfar fieldmeasurement,i.e.:lightintensityasafunctionoftheangletotheopticalfibreaxis. Choppingtheopticalsignalisdesirableforeaseofevaluation. Figure2

24、 5 Method 5.1 Thetestshallbebasedonacomparisonmeasurement,using,asanexample,thetest arrangementshowninfigure1. 5.2 Procedure 5.2.1 Opticalconnectionelementsandsplices Measurethefarfieldpowerdistributioncharacteristicofthereferencefibre. Cutthefibreandinserttheopticalconnectionelementorsplice(EN25916

25、01,method1). Measurethefarfieldpowerdistributionofthefibreandopticalconnectionelementorsplice. 5.2.2 Couplers Measurethefarfieldpowerdistributioncharacteristicofthereferencefibre. Removethereferencecable/fibreandreplacewiththespecimencoupler(EN2591601,method2). Measurethefarfieldpowerdistributionoft

26、hespecimencoupler. 5.3 Requirements Thecurvesshallbecomparedtoestablishhowthefarfielddistributionhasbeenchangedbytheinsertionof aspecimen.Thischangeshallbeinaccordancewiththeproductstandard.blankBS EN 2591-603:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the

27、 independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure th

28、at they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible,

29、 the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI,

30、 international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy

31、to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Va

32、rious BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receiv

33、e substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online can

34、be found at http:/www.bsi- Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Co

35、pyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing t

36、he standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.

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