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1、BRITISH STANDARD BS EN 61300-3-26: 1997 IEC 61300-3-26: 1997 Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3: Examinations and measurements Section 26: Measurement of the angular misalignment between fibre and ferrules axes The European Standar
2、d EN 61300-3-26:1997 has the status of a British Standard ICS 33.180.20 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-3-26:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Boar
3、d, was published under the authority of the Standards Board and comes into effect on 15 September 1997 BSI 09-1999 ISBN 0 580 27706 2 National foreword This British Standard is the English language version of EN 61300-3-26:1997. It is identical with IEC 61300-3-26:1997. The UK participation in its p
4、reparation was entrusted by Technical Committee EPL/86, FIBRE OPTICS, to Subcommittee EPL/86/2, Interconnecting devices and passive components, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the inte
5、rpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publicati
6、ons have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact th
7、at CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under t
8、he section entitled “International Standards Correspondence Index”, or 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 applicat
9、ion. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover. This standard has been updated (see copyright date) and
10、may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-3-26:1997 BSI
11、 09-1999i Contents Page National forewordInside front cover Foreword2 Text of EN 61300-3-263 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolle
12、d Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61300-3-26 June 1997 ICS 33.180.20 English version Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-26: Examinations and measurements Measurement of the angular misalignment be
13、tween fibre and ferrules axes (IEC 61300-3-26:1997) Dispositifs dinterconnexion et composants passifs fibres optiques Mthodes fondamentales dessais et de mesures Partie 3-26: Examens et mesures Mesure de lerreur dalignement angulaire des embouts avec fibre (CEI 61300-3-26:1997) Lichtwellenleiter Ver
14、bindungselemente und passive Bauteile Grundlegende Prf- und Meverfahren Teil 3-26: Untersuchungen und Messungen Messung des Fehlwinkels in der optischen Achse zwischen Faser und Ferrule (IEC 61300-3-26:1997) This European Standard was approved by CENELEC on 1997-03-11. CENELEC members are bound to c
15、omply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central
16、Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status
17、 as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for El
18、ectrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. N
19、o. EN 61300-3-26:1997 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61300-3-26:1997 BSI 09-1999 2 Foreword The text of document 86B/848/FDIS, future edition 1 of IEC 61300-3-26, prepared by SC 86B, Fibre optic interconnecting devices
20、and passive components, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61300-3-26 on 1997-03-11. The following dates were fixed: Endorsement notice The text of the International Standard IEC 61300-3-26:1997 was approved by CENELEC as a Eu
21、ropean Standard without any modification. Contents Page Foreword2 1General3 2General description3 3Apparatus3 4Procedure3 5Details to be specified3 Figure 1 Definition of angular misalignment3 Figure 2 Example of set-up for angular misalignment measuring4 latest date by which the EN has to be implem
22、ented at national level by publication of an identical national standard or by endorsement(dop) 1997-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1997-12-01 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontro
23、lled Copy, (c) BSI EN 61300-3-26:1997 BSI 09-19993 1 General 1.1 Scope and object This part of IEC 1300 describes the procedure to determine the angular misalignments of ferrule with fibre installed. 1.2 Normative reference The following normative document contains provisions which, through referenc
24、e in this text, constitute provisions of this part of IEC 1300. At the time of publication, the edition indicated was valid. All normative documents are subject to revision, and parties to agreements based on this part of IEC 1300 are encouraged to investigate the possibility of applying the most re
25、cent edition of the normative document indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 2538:1974, Limits and fits Series of angles and slopes on wedges and prisms. 2 General description This procedure describes the measurement of the angular
26、 misalignment of ferrules with assembled fibres. Angular misalignment is defined as the angle between the axis of the ferrule and the axis of the installed fibre (see Figure 1). This procedure measures angular misalignment by measuring the deviation in the far field pattern from the core as the ferr
27、ule is rotated around the axis. This method assumes that ferrule end face tilt and fibre axis tilt are both included in F (Figure 1). 3 Apparatus The apparatus consists of the following elements. 3.1 V-groove or centring mechanism According to ISO 2538 the preferred angle for a V-groove is 108. 3.2
28、Screen The screen shall be perpendicular to axis of the V-groove or the centring mechanism. 3.3 Light source White light. 4 Procedure 4.1 Light is launched into the fibre and the light from the end face of the fibre, contained in the ferrule, is displayed on the screen as shown in Figure 2. 4.2 Rota
29、te the ferrule through 360, in the V-groove or centring mechanism. The far field pattern traces concentrically along a target circle drawn on the screen. 4.3 Find the radius of the circular locus r of the far field pattern. 4.4 Angular misalignment F is calculated from the radius R and distance betw
30、een the ferrule end face and the screen L. Angular misalignment F is calculated by the following equation (see note). Measurement error will be 0,06. F = tan1 R/L NOTEThis formula does not take into account the dome offset influence. 4.5 CCD or other kind of photodetector bidirectional array may sub
31、stitute the screen. Other detecting methods using video camera with electronic acquisition system will be described in future amendments of this standard. 5 Details to be specified The following details, as applicable, shall be specified in the detail specification: Allowable angular misalignment Li
32、ght source Distance “L”. Figure 1 Definition of angular misalignment Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61300-3-26:1997 4 BSI 09-1999 Figure 2 Example of set-up for angular misalignment measuring Licensed Copy: sheffieldun sh
33、effieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:53:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61300-3-26: 1997 IEC 61300-3-26: 1997 BSI 389 Chiswick High Road London W4 4AL BSI British Standards In
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