1、BRITISH STANDARDBS EN 61300-3-15:2007Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 3-15: Examinations and measurements Dome eccentricity of a convex polished ferrule endface The European Standard EN 61300-3-15:2007 has the status of a British S
2、tandardICS 33.180.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61300-3-15:2007This British Standard was published under the authority of
3、the Standards Policy and Strategy Committee on 30 March 2007 BSI 2007ISBN 978 0 580 50307 8National forewordThis British Standard was published by BSI. It is the UK implementation of EN 61300-3-15:2007. It is identical with IEC 61300-3-15:2006. It supersedes BS EN 61300-3.15:1997 which is withdrawn.
4、The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic interconnecting devices and passive components.A list of organizations represented on GEL/86/2 can be obtained on request to its secretary.This publication does no
5、t purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARD EN 61300-3-15 NORME EUROPENNE
6、 EUROPISCHE NORM February 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any
7、form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61300-3-15:2007 E ICS 33.180.20 Supersedes EN 61300-3-15:1997English version Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-15: Examinations and measurements - Dome
8、eccentricity of a convex polished ferrule endface (IEC 61300-3-15:2006) Dispositifs dinterconnexion et composants passifs fibres optiques - Mthodes fondamentales dessais et de mesures - Partie 3-15: Examens et mesures - Dcentrage du dme de la face terminale dune frule polie convexe (CEI 61300-3-15:2
9、006) Lichtwellenleiter - Verbindungselemente und passive Bauteile - Grundlegende Prf- und Messverfahren - Teil 3-15: Untersuchungen und Messungen - Exzentrizitt eines konvex polierten Stiftes(IEC 61300-3-15:2006) This European Standard was approved by CENELEC on 2006-11-01. CENELEC members are bound
10、 to comply 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 Cen
11、tral 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 s
12、tatus as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway,
13、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61300-3-15:2006 2 Foreword The text of document 86B/2371/FDIS, future edition 2 of IEC 61300-3-15, prepared by SC 86B, Fibre optic interconnecting devices and passive components, of IEC TC 86, Fibre
14、 optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61300-3-15 on 2006-11-01. This European Standard supersedes EN 61300-3-15:1997. EN 61300-3-15:2007 prescribes only an interference method though EN 61300-3-15:1997 prescribed a Newton ring method as well as an
15、interference method. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-08-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow)
16、2009-11-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61300-3-15:2006 was approved by CENELEC as a European Standard without any modification. _ 3 EN 61300-3-15:2006 CONTENTS 1 Scope 4 2 Normative reference .4 3 General description 4 3.1 Apex
17、eccentricity .4 3.2 Interference method.5 4 Apparatus.5 5 Procedure 6 6 Details to be specified 8 Bibliography .9 Annex ZA (normative) Normative references to international publications with their corresponding European publications 10 Figure 1 Definition of apex eccentricity .4 Figure 2 Example of
18、displacement of ring centre for ferrule rotation 6 Figure 3 Example of set-up for eccentricity measurement .7 EN 61300-3-15:2006 4 FIBRE OPTIC INTERCONNECTING DEVICES AND PASSIVE COMPONENTS BASIC TEST AND MEASUREMENT PROCEDURES Part 3-15: Examinations and measurements Dome eccentricity of a convex p
19、olished ferrule endface 1 Scope This part of IEC 61300 describes measurement of dome eccentricity of a spherically polished ferrule endface according to an interference method. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated
20、 references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2538, Geometrical Product Specifications (GPS) Series of angles and slopes on prisms. 3 General description 3.1 Apex eccentricity Apex eccentrici
21、ty (X) is defined as the distance between the axis of the ferrule and the line parallel to the axis which passes through the vertex or highest point on the dome formed by spherically polishing the ferrule, as shown in Figure 1. Vertex or highest point on dome Apex eccentricity (X) FerruleAxis of fer
22、rule IEC 1806/06 Figure 1 Definition of apex eccentricity 5 EN 61300-3-15:2006 The eccentricity may be directly determined as the distance between the centre of the fibre or fibre hole and the centre of the interference ring. In this case, the eccentricity measurement will be affected by any misalig
23、nment of the measuring system, especially the angular offset between the ferrule axis and the interferometric axis. The measured dome eccentricity of angle polished ferrules is affected by further offsets caused by the tolerances of the keying position. The alignment of the measuring system shall be
24、 strictly checked and adjusted. In the method used, errors due to misalignment of the measuring system can be reduced by rotating the ferrule around its axis and observing the maximum displacement of the centre of interference rings. The dome eccentricity is one-half of the maximum displacement. 3.2
25、 Interference method This method uses an interferometer and a microscope with a camera. Interference is created between the reference beam and the beam reflected from the ferrule endface, and the interference ring is observed. The ferrule is rotated around its axis. The displacement of the centre of
26、 the interference ring is observed. The eccentricity is determined as one-half of the maximum displacement. 4 Apparatus The interference method requires the following material: a V-groove or precision sleeve mounted on a micro-manipulator (according to ISO 2538, the preferred angle for the V-groove
27、is 108); an interferometer; a microscope with camera; a monitor; a light source EN 61300-3-15:2006 6 5 Procedure 2XO1O2Axis of the ferrule O1Centre of the ring before rotation O2Centre of the ring after rotation (180) IEC 1807/06 Figure 2a Ideal measurement when the measuring system has no misalignm
28、ent 2XO1O2Ideal ferrule axis Ideal centre of the ferrule Actual centre of the ferrule Ferrule position with ideal measuring system alignment Ferrule position with some measuring system misalignment Actual ferrule axis Angular offset Vertex or highest point on dome O1Centre of the ring before rotatio
29、n O2Centre of the ring after rotation (180) IEC 1808/06 Figure 2b Actual measurement when the measuring system has any angular offset Figure 2 Example of displacement of ring centre for ferrule rotation 7 EN 61300-3-15:2006 a) Place the ferrule in the V-groove or the precision sleeve. b) Position th
30、e ferrule into a visual field of the TV screen using the micro-manipulator. c) Observe the interference ring and record the position of the centre of the ring (see Figure 3). d) Rotate the ferrule through 180. Record the second position of the centre of the ring. e) Record the displacement 2X of the
31、 centre of the interference ring. The dome eccentricity is one-half of the maximum displacement (also see Figures 2a and 2b). Interference ring Centre of the interference ring Ferrule, inner diameter Ferrule, outer diameter Microscope with camera Mirror Light source Half-mirror Ferrule V-groove or p
32、recision lCentre of the ferrule IEC 1809/06 NOTE The eccentricity may be determined by recording three or more positions of the ring centre on its circle locus as the ferrule is rotated and by calculating the radius of the least squares circle. Figure 3 Example of set-up for eccentricity measurement
33、 For the measurement of angled polished ferrules the rotation of the ferrule around its axis is not possible and should be replaced by a guaranteed calibration of the alignment system prior to the measurement. The alignment system is then rotated to compensate the nominal polishing angle. EN 61300-3
34、-15:2006 8 6 Details to be specified The following details, as applicable, shall be specified in the relevant specification: maximum allowable repeatability of measuring system; allowable dome eccentricity. 9 EN 61300-3-15:2006 Bibliography IEC 61300-1, Fibre optic interconnecting devices and passiv
35、e components Basic test and measurement procedures Part 1: General and guidance _ NOTE Harmonized as EN 61300-1:2003 (not modified). EN 61300-3-15:2006 10 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced d
36、ocuments are indispensable for the application 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. NOTE When an international publication has been modified by common modifica
37、tions, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year ISO 2538 -1)Geometrical Product Specifications (GPS) - Series of angles and slopes on prisms EN ISO 2538 20032)1)Undated reference. 2)Valid edition at date of issue. blankBS EN 61300-3-15:2007BSI389 Chiswick Hig
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