1、Fibre optic interconnecting devices and passive components Basic test and measurement proceduresPart 3-25: Examinations and measurements Concentricity of non-angled ferrules and non-angled ferrules with fibre installedBS EN 61300-3-25:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.ind
2、d 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 61300-3-25:2016. It isidentical to IEC 61300-3-25:2016. It supersedes BS EN 61300-3-25:2013which is withdrawn.The UK participation in its preparation was entrusted by TechnicalCommittee GEL/86, Fibre optics, to
3、 Subcommittee GEL/86/2, Fibre opticinterconnecting devices and passive components.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its cor
4、rect application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 87162 7ICS 33.180.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strate
5、gy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 61300-3-25:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61300-3-25 November 2016 ICS 33.180.20 Supersedes EN 61300-3-25:2013 English Version Fibre optic interconnecting
6、devices and passive components - Basic test and measurement procedures - Part 3-25: Examinations and measurements - Concentricity of non-angled ferrules and non-angled ferrules with fibre installed (IEC 61300-3-25:2016) Dispositifs dinterconnexion et composants passifs fibroniques - Procdures fondam
7、entales dessais et de mesures - Partie 3-25: Examens et mesures - Concentricit des frules sans angle et des frules sans angle avec fibre monte (IEC 61300-3-25:2016) Lichtwellenleiter-Verbindungselemente und passive Bauteile - Grundlegende Prf- und Messverfahren - Teil 3-25: Untersuchungen und Messun
8、gen - Konzentrizitt der nicht schrggeschliffenen Ferrulen und der nicht schrggeschliffenen Ferrulen mit eingebauter Faser (IEC 61300-3-25:2016) This European Standard was approved by CENELEC on 2016-10-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
9、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 CEN-CENELEC Management Centre or to any CENELEC member. This European St
10、andard 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 CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members a
11、re the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway,
12、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Mar
13、nix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61300-3-25:2016 E BS EN 61300-3-25:2016EN 61300-3-25:2016 2 European foreword The text of document 86B/3900/CDV, future edition 3 of IEC 61300-3-25, prepar
14、ed by SC 86B “Fibre optic interconnecting devices and passive components” of IEC/TC 86 “Fibre optics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61300-3-25:2016. The following dates are fixed: latest date by which the document has to be implemented at national level
15、 by publication of an identical national standard or by endorsement (dop) 2017-07-04 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-10-04 This document supersedes EN 61300-3-25:2013. Attention is drawn to the possibility that some of the ele
16、ments of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61300-3-25:2016 was approved by CENELEC as a European Standard without any modific
17、ation. In the official version, for Bibliography, the following note has to be added for the standard indicated : ISO 2538 NOTE Harmonized as EN ISO 2538 1). 1)The latest edition is superseded by EN ISO 2538-1:2014 and EN ISO 2538-2:2014. BS EN 61300-3-25:2016 2 IEC 61300-3-25:2016 IEC 2016 CONTENTS
18、 FOREWORD . 3 1 Scope 5 2 Normative references. 5 3 General description . 5 3.1 General . 5 3.2 Method A: ferrule surface reference method (reference test method) 6 3.3 Method B: core centre reference method on a ferrule with fibre installed 6 4 Apparatus 6 4.1 Method A 6 4.2 Method B 6 5 Procedure
19、. 6 5.1 Method A-1 . 6 5.2 Method A-2 . 7 5.3 Method B 8 6 Details to be specified . 9 6.1 Method A 9 6.2 Method B 9 Bibliography . 10 Figure 1 Definition of concentricity . 5 Figure 2 Set-up example for concentricity measurement (method A-1) of ferrules with fibre installed . 7 Figure 3 Set-up exam
20、ple for concentricity measurement (method A-2) of bare ferrules . 8 Figure 4 Set-up example for concentricity measurement (method B) of ferrules with fibre installed 9 BS EN 61300-3-25:2016IEC 61300-3-25:2016 IEC 2016 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIBRE OPTIC INTERCONNECTING DEVICES
21、AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 3-25: Examinations and measurements Concentricity of non-angled ferrules and non-angled ferrules with fibre installed FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comp
22、rising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Stan
23、dards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this prep
24、aratory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organi
25、zations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form o
26、f recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretatio
27、n by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regio
28、nal publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out b
29、y independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees f
30、or any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the No
31、rmative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held res
32、ponsible for identifying any or all such patent rights. International Standard IEC 61300-3-25 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components, of IEC technical committee 86: Fibre optics. This third edition cancels and replaces the second edition pub
33、lished in 2013 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) deletion of method C due to potential damage of ferrule end face by the spindle. Method C is the ferrule bore reference method for bare ferr
34、ules according to IEC 61300-3-25:2013; b) separation of original method A into method A-1 and method A-2 relating to the two different types of ferrule (with/without fibre fitted); c) integration of the content of Annexes A and B into the test procedure. BS EN 61300-3-25:2016 4 IEC 61300-3-25:2016 I
35、EC 2016 The text of this standard is based on the following documents: CDV Report on voting 86B/3900/CDV 86B/3956A/RVC Full information on the voting for the approval of this document can be found in the report on voting indicated in the above table. This document has been drafted in accordance with
36、 the ISO/IEC Directives, Part 2. A list of all parts in the IEC 61300 series, published under the general title, Fibre optic interconnecting devices and passive components Basic test and measurement procedures, can be found on the IEC website. The committee has decided that the contents of this docu
37、ment will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 61300-3-25:2016IEC 61300-3-25:2016
38、IEC 2016 5 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 3-25: Examinations and measurements Concentricity of non-angled ferrules and non-angled ferrules with fibre installed 1 Scope This part of IEC 61300 describes the procedure to determine t
39、he concentricity of the axis of the bore in a non-angled ferrule with the axis of the ferrule, and in the case of non-angled ferrules with fibre installed, to determine the concentricity of the axis of the fibre core with the axis of the ferrule. 2 Normative references The following documents are re
40、ferred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. There are no normative refe
41、rences in this document. 3 General description 3.1 General This procedure describes the measurement of concentricity of ferrules and ferrules with assembled fibres. Concentricity is defined as twice the distance between the axis of the ferrule and the axis of the inner diameter of the ferrule (ferru
42、le bore), or in the case of ferrules with fibre installed, twice the distance between the axis of the ferrule and the axis of the core of the installed fibre (see Figure 1). When concentricity measurements are made on a ferrule with fibre installed the results will be affected by the geometry of the
43、 fibre, and by the fit of the fibre in the ferrule inner diameter. Imperfections of the cylindricity and circularity of the outside diameter of the ferrule will influence the measurement results. Figure 1 Definition of concentricity Two methods of concentricity measurement are described in 3.2 and 3
44、.3. IEC C Axis of ferrule Concentricity Axis of fibre core or ferrule bore Fibre core or ferrule bore Ferrule BS EN 61300-3-25:2016 6 IEC 61300-3-25:2016 IEC 2016 3.2 Method A: ferrule surface reference method (reference test method) In Method A, the ferrule is placed in a V-groove or outer diameter
45、 (OD) reference mechanism, and rotated. The displacement of the ferrule inner diameter or fibre core is observed and the concentricity determined. 3.3 Method B: core centre reference method on a ferrule with fibre installed Method B uses a roundness measuring instrument to measure concentricity. In
46、this method, the core axis is fixed at the axis of the measuring instrument, and the concentricity is determined by measuring, usually with a probe, the displacement of the outer diameter of the ferrule as the ferrule is rotated. 4 Apparatus 4.1 Method A The apparatus for method A consists of the fo
47、llowing elements: V-groove or OD reference mechanism mounted on a micro-manipulator. According to ISO 2538, the preferred angle for a V-groove is 108; microscope with video camera; display; light source; a white light is suitable for this procedure; signal processor. 4.2 Method B The apparatus for m
48、ethod B consists of the following elements: roundness measuring instrument with microscope including a recorder, X-Y table, chuck and pickup; light source; a white light is suitable for this procedure. 5 Procedure 5.1 Method A-1 The procedure for a ferrule with fibre installed is as follows. a) Clea
49、n the outer surface of the ferrule. b) Place the ferrule in the V-groove or OD reference mechanism as shown in Figure 2. c) Illuminate the fibre core from the other end of the fibre. d) Acquire an image of the illuminated fibre core. e) Calculate the centre of gravity (COG) with the coordinates x and y of the core-pixels using the following formula: =threshyxIthreshyxItotalyxIyCOGytotalyxIxCOGx),(),(),(),(1) where (x,y) is the current pixel loca
