DIN EN ISO 15548-2-2014 Non-destructive testing - Equipment for eddy current examination - Part 2 Probe characteristics and verification (ISO 15548-2 2013) German version EN ISO 15.pdf

1、March 2014Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 1

2、9.100!%,F“2099535www.din.deDDIN EN ISO 15548-2Non-destructive testing Equipment for eddy current examination Part 2: Probe characteristics and verification (ISO 15548-2:2013);English version EN ISO 15548-2:2013,English translation of DIN EN ISO 15548-2:2014-03Zerstrungsfreie Prfung Technische Ausrst

3、ung fr die Wirbelstromprfung Teil 2: Kenngren von Sensoren und deren Verifizierung (ISO 15548-2:2013);Englische Fassung EN ISO 15548-2:2013,Englische bersetzung von DIN EN ISO 15548-2:2014-03Essais non destructifs Appareillage pour examen par courants de Foucault Partie 2: Caractristiques des capteu

4、rs et vrifications (ISO 15548-2:2013);Version anglaise EN ISO 15548-2:2013,Traduction anglaise de DIN EN ISO 15548-2:2014-03SupersedesDIN EN ISO 15548-2:2009-01www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 32 pages03.14 DIN EN ISO 155

5、48-2:2014-03 2 A comma is used as the decimal marker. National foreword This document (EN ISO 15548-2:2013) has been prepared by Technical Committee ISO/TC 135 “Non-destructive testing” in collaboration with Technical Committee CEN/TC 138 “Non-destructive testing” (Secretariat: AFNOR, France). The r

6、esponsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-08-24 AA Elektrische und magnetische Prfverfahren. The DIN Standards corresponding to the International Standards referred to in this document a

7、re as follows: ISO 12718 DIN EN ISO 12718 ISO 15548-1 DIN EN ISO 15548-1 ISO 15549 DIN EN ISO 15549 Amendments This standard differs from DIN EN ISO 15548-2:2009-01 as follows: a) the standard has been revised in form and substance. Previous editions DIN EN 13860-2: 2003-05 DIN EN ISO 15548-2: 2009-

8、01 National Annex NA (informative) Bibliography DIN EN ISO 12718, Non-destructive testing Eddy current testing Vocabulary DIN EN ISO 15548-1, Non-destructive testing Equipment for eddy current examination Part 1: Instrument characteristics and verification DIN EN ISO 15549, Non-destructive testing E

9、ddy current testing General principles EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM December 2013 ICS 19.100 Supersedes EN ISO 15548-2:2008English Version Non-destructive testing - Equipment for eddy current examination - Part 2: Probe characteristics and verification(ISO 15548-2:2013) Essais n

10、on destructifs - Appareillage pour examen par courants de Foucault - Partie 2: Caractristiques des capteurs et vrifications (ISO 15548-2:2013) Zerstrungsfreie Prfung - Technische Ausrstung fr die Wirbelstromprfung - Teil 2: Kenngren von Sensoren und deren Verifizierung (ISO 15548-2:2013) This Europe

11、an Standard was approved by CEN on 12 November 2013. CEN members are bound 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 co

12、ncerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN 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 CEN member

13、into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France

14、, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI

15、TEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15548-2:2013 EEN ISO 15548-2 Contents Page Foreword . 3 1 Scope . 4 2 Normative references. 4

16、3 Terms and definitions 4 4 Characteristics of probe and interconnecting elements 4 4.1 General characteristics . 4 4.2 Electrical characteristics . 6 4.3 Functional characteristics . 6 5 Verification 7 5.1 General 7 5.2 Levels of verification 7 5.3 Verification procedure . 8 5.4 Corrective actions

17、8 6 Measurement of electrical and functional characteristics of a probe 8 6.1 Electrical characteristics . 8 6.2 Functional characteristics . 9 6.3 Normalised impedance plane diagram 27 7 Influence of interconnecting elements 27 Annex A (informative) Reference block A6 . 28 Bibliography 30 2DIN EN I

18、SO 15548-2:2014-03EN ISO 15548-2:2013 (E) Foreword This document (EN ISO 15548-2:2013) has been prepared by Technical Committee ISO/TC 135 “Non-destructive testing” in collaboration with Technical Committee CEN/TC 138 “Non-destructive testing” the secretariat of which is held by AFNOR. This European

19、 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2014, and conflicting national standards shall be withdrawn at the latest by June 2014. Attention is drawn to the possibility that some of the elements of t

20、his document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 15548-2:2008. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following cou

21、ntries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P

22、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 15548-2:2013 has been approved by CEN as EN ISO 15548-2:2013 without any modification. 3DIN EN ISO 15548-2:2014-03 EN ISO 15548-2:2013 (E) EN ISO 15548 consists

23、 of the following parts, under the general title Non-destructive testing Equipment for eddy current examination: Part 1: Instrument characteristics and verification Part 2: Probe characteristics and verification Part 3: System characteristics and verification 1 ScopeThis part of ISO 15548 identifies

24、 the functional characteristics of a probe and its interconnecting elements and provides methods for their measurement and verification.The evaluation of these characteristics permits a well-defined description and comparability of eddy current equipment.By careful choice of the characteristics, a c

25、onsistent and effective eddy current examination system can be designed for a specific application.Where accessories are used, these should be characterised using the principles of this part of ISO 15548.This part of ISO 15548 does not give the extent of verification nor acceptance criteria for the

26、characteristics. These are given in the application documents.2 Normative referencesThe following referenced documents 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 (

27、including any amendments) applies.ISO 12718, Non-destructive testing Eddy current testing Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 12718 apply.4 Characteristics of probe and interconnecting elements4.1 General characteristics4.1.1 App

28、licationProbes and interconnecting elements are selected to satisfy the requirements of the intended application.The design is influenced by the instrument with which they are used.4.1.2 Probe typesThe probe is described by the following: type of material to be examined, i.e. ferromagnetic or non-fe

29、rromagnetic, with high or low conductivity;4DIN EN ISO 15548-2:2014-03EN ISO 15548-2:2013 (E) function, e.g. separate or combined transmit/receive probe; family, e.g. coaxial probe, surface probe; measurement mode, e.g. absolute, differential; purpose of the examination, e.g. detection of discontinu

30、ities, sorting or thickness measurement, etc.; specific features, e.g. focused, shielded, etc.4.1.3 Interconnecting elementsThey may include the following: cables and/or extensions; connectors; slip rings; rotating heads; transformers; active devices, e.g. multiplexer, amplifier, etc.4.1.4 Physical

31、characteristicsThe following shall be stated among others: external size and shape; weight; information about mechanical mounting; model number and serial number; material of manufacture of probe housing; composition and thickness of facing material; presence and purpose of core or shield; type of i

32、nterconnecting elements (see 4.1.3); orientation mark (direction for maximum sensitivity, see 6.2.3.3); position mark (electrical centre, see 6.2.3.4).4.1.5 SafetyThe probe and its interconnecting elements shall meet the applicable safety regulations regarding electrical hazard, surface temperature,

33、 or explosion.Normal use of the probe should not create a hazard.4.1.6 Environmental conditionsThe temperature and humidity for normal use, storage and transport should be specified for the probe and its interconnecting elements.5DIN EN ISO 15548-2:2014-03 EN ISO 15548-2:2013 (E) The tolerance of th

34、e probe and its interconnecting elements to the effects of interference noise and electromagnetic radiation shall conform to electromagnetic compatibility (EMC) regulations.Materials used in the manufacture of the probe should be resistant to contaminants.4.2 Electrical characteristicsThe external e

35、lectrical connections to the probe shall be clearly identified or declared in writing.The electrical characteristics of a probe connected to a specified length and type of cable are as follows: recommended range of excitation current and voltage for safe operation; recommended range of excitation fr

36、equencies; impedance of the excitation element in air; resonant frequency of the excitation element in air; impedance of the receiving element(s) in air.The electrical characteristics of an extension cable shall also be clearly identified.4.3 Functional characteristicsThe functional characteristics

37、of a probe shall be determined for a defined system.The measurement of the functional characteristics of a probe requires the use of calibration blocks. The material used for the reference block is determined by the application.The functional characteristics of a probe are as follows: directionality

38、; response to elementary discontinuities (hole, slot); length and width of coverage; area of coverage; minimum dimensions of discontinuities for constant response; penetration characteristics; geometric effects; normalised impedance locus (when the frequency is varied) of the exciting element with m

39、inimum probe clearance from a homogeneous block of a specified material.These characteristics cannot be used alone to establish the performance (e.g. resolution, smallest detectable discontinuity, etc.) of the probe in a given test system, for a given application.When relevant, the influence of inte

40、rconnecting elements on the functional characteristics of the probe shall be measured.6DIN EN ISO 15548-2:2014-03EN ISO 15548-2:2013 (E) 5 Verification5.1 GeneralFor a consistent and effective eddy current examination, it is necessary to verify that the performance of the component parts of the eddy

41、 current test system is maintained within acceptable limits.The physical condition of the reference blocks shall be verified to be within acceptable limits, before being used to verify the system or probes.The measuring equipment used for verification shall be in a known state of calibration.For a b

42、etter understanding, the verification procedure is described identically in all three parts of ISO 15548.5.2 Levels of verificationThere are three levels of verification. Each level defines the time intervals between verification and the complexity of the verification.It is understood that initial t

43、ype testing has already been carried out by the manufacturer or under his control.a) Level 1: Global functional checkA verification is performed at regular intervals of time on the eddy current test system, using reference blocks to verify that the performance is within specified limits.The verifica

44、tion is usually performed at the examination location.The time interval and the reference blocks are defined in the verification procedure.b) Level 2: Detailed functional check and calibrationA verification on an extended time scale is performed to ensure the stability of selected characteristics of

45、 the eddy current instrument, probe, accessories and reference blocks.c) Level 3: CharacterisationA verification is performed on the eddy current instrument, probe accessories and reference blocks to ensure conformity with the characteristics supplied by the manufacturer.The organization requiring t

46、he verification shall specify the characteristics to be verified.The main features of verification are shown in Table 1.Table 1 Verification levelsLevel Object Typical time period Instruments Responsible entity1 Global functional checkStability of system performanceFrequently, e.g. hourly, dailyRefe

47、rence blocks User2 Detailed functional check and calibrationStability of selected characteristics of the instrument, probes and accessoriesLess frequently but at least annually and after repairCalibrated measur-ing instruments, reference blocksUser3 CharacterisationAll characteristics of the instrum

48、ent, probes and acces-soriesOnce (on release) and when required.Calibrated labora-tory measuring instruments and reference blocksManufacturer, user7DIN EN ISO 15548-2:2014-03 EN ISO 15548-2:2013 (E) 5.3 Verification procedureThe characteristics to be verified are dependent on the application. The es

49、sential characteristics and the level of verification shall be specified in a verification procedure.The examination procedure for the application shall refer to the verification procedure. This can restrict the number of characteristics of a general-purpose instrument to be verified for a defined application.Sufficient data on the characteristics featured in an instrument, probe and reference block shall be provid