1、June 2010 Translation by DIN-Sprachendienst.English price group 20No 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!$i-Y“1701054www.din.deDDIN EN 12668-2Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 2: ProbesEnglish translation of DIN EN 12668-2:2010-06Zerstrungsfreie Prfung Charakterisierung und Verifizierung der Ultraschall-Prfausrstung Teil 2: PrfkpfeE
3、nglische bersetzung von DIN EN 12668-2:2010-06Essais non destructifs Caractrisation et vrification de lappareillage de contrle par ultrasons Partie 2: TraducteursTraduction anglaise de DIN EN 12668-2:2010-06SupersedesDIN EN 12668-2:2001-09 andDIN EN 12668-2/A1:2004-10www.beuth.deDocument comprises p
4、agesIn case of doubt, the German-language original shall be considered authoritative.5406.10 DIN EN 12668-2:2010-06 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 138 “Non-destructive testing” (Secretatariat: AFNOR, France). The
5、 responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-08-23 AA Ultraschallprfung. The original EN document contains an error in the key of Figure B.2, instead of “b” it should read “d”. This has b
6、een corrected in the German version of DIN EN 12668-2, and correspondingly in the English version. Amendments This standard differs from DIN EN 12668-2:2001-09 und DIN EN 12668-2/A1:2004-10 as follows: a) EN ISO/IEC 17025 has been included in the Bibliography. b) General requirements have been revis
7、ed and rendered more precise. c) The figures have been updated. d) The text of the standard has been editorially revised. Previous editions DIN EN 12668-2: 2001-09 DIN EN 12668-2/A1: 2004-10 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12668-2 February 2010 ICS 19.100 Supersedes EN 12668-2
8、:2001 andEN 12668-2:2001/A1:2004English Version Non-destructive testing - Characterization and verification of ultrasonic examination equipment - Part 2: Probes Essais non destructifs - Caractrisation et vrification de lappareillage de contrle par ultrasons - Partie 2: Traducteurs Zerstrungsfreie Pr
9、fung - Charakterisierung und Verifizierung der Ultraschall-Prfausrstung - Teil 2: Prfkpfe This European Standard was approved by CEN on 25 December 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta
10、tus 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German).
11、A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Cze
12、ch Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
13、OPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12668-2:2010: EEN 12668-2:2010 (E) 2 Contents Page Foreword 41 Scope 52
14、Normative references 53 Terms and definitions .54 General requirements for compliance .75 Technical specification for probes 76 Test equipment . 116.1 Electronic equipment . 116.2 Test blocks and other equipment . 117 Performance requirements for probes . 147.1 Physical aspects . 147.1.1 Method . 14
15、7.1.2 Acceptance criterion 147.2 Radio frequency pulse shape 147.2.1 Method . 147.2.2 Acceptance criterion 147.3 Pulse spectrum and bandwidth . 147.3.1 Method . 147.3.2 Acceptance criteria . 157.4 Relative pulse-echo sensitivity . 157.4.1 Method . 157.4.2 Acceptance criterion 157.5 Distance-amplitud
16、e curve 157.5.1 Method . 157.5.2 Acceptance criterion 167.6 Electrical impedance 177.6.1 Method . 177.6.2 Acceptance criteria . 177.7 Beam parameters for immersion probes . 177.7.1 General . 177.7.2 Beam profile measurements performed directly on the beam . 187.7.3 Beam profile measurements made usi
17、ng an automated scanning system 207.8 Beam parameters for contact, straight-beam, single transducer probes . 217.8.1 General . 217.8.2 Beam divergence and side lobes 227.8.3 Squint angle and offset 237.8.4 Focal distance (near field length) 237.8.5 Focal width 247.8.6 Focal length . 247.9 Beam param
18、eters for contact angle-beam single transducer probes. 257.9.1 General . 257.9.2 Index point . 257.9.3 Beam angle and beam divergence 257.9.4 Squint angle and offset 267.9.5 Focal distance (near field length) 277.9.6 Focal width 287.9.7 Focal length . 287.10 Beam parameters for contact, straight bea
19、m, dual-element probes . 297.10.1 General . 297.10.2 Cross talk . 297.10.3 Distance to sensitivity maximum (focal distance) 297.10.4 Axial sensitivity range (focal length) 29DIN EN 12668-2:2010-06 EN 12668-2:2010 (E) 3 7.10.5 Lateral sensitivity range (focal width) . 307.11 Beam parameters for conta
20、ct angle beam, dual-element probes 307.11.1 General 307.11.2 Cross talk . 317.11.3 Index point 317.11.4 Beam angle and profiles . 317.11.5 Distance to sensitivity maximum (focal distance) . 327.11.6 Axial sensitivity range (focal length) . 327.11.7 Lateral sensitivity range (focal width) . 32Annex A
21、 (normative) Calculation of near field length of non-focusing probes 45A.1 General 45A.2 Straight beam probes 45A.3 Angle beam probes . 46Annex B (informative) Calibration block for angle-beam probes . 48Bibliography 52DIN EN 12668-2:2010-06 EN 12668-2:2010 (E) 4 Foreword This document (EN 12668-2:2
22、010) has been prepared by Technical Committee CEN/TC 138 “Non-destructive testing”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2010, and conf
23、licting national standards shall be withdrawn at the latest by August 2010. Attention is drawn to the possibility that some of the elements of this 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 docum
24、ent supersedes EN 12668-2:2001. EN 12668, Non-destructive testing Characterization and verification of ultrasonic examination equipment, consists of the following parts: Part 1: Instruments Part 2: Probes Part 3: Combined equipment Annex A is normative. Annex B is informative. According to the CEN/C
25、ENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu
26、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 12668-2:2010-06 EN 12668-2:2010 (E) 5 1 Scope This European Standard covers probes used for ultrasonic non-destructive examination in the following c
27、ategories with centre frequencies in the range 0,5 MHz to 15 MHz, focusing and without focusing means: a) single or dual transducer contact probes generating compressional or shear waves; b) single transducer immersion probes. Where material-dependent ultrasonic values are specified in this document
28、 they are based on steels having a sound velocity of (5 920 50) m/s for longitudinal waves, and (3 255 30) m/s for transverse waves. Periodic tests for probes are not included in this document. Routine tests for the verification of probes using on-site methods are given in EN 12668-3. If parameters
29、in addition to those specified in EN 12668-3 are to be verified during the probes life time, as agreed upon by the contracting parties, the methods of verification for these additional parameters should be selected from those given in this document. 2 Normative references The following referenced do
30、cuments 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. EN 1330-4:2010, Non-destructive testing Terminology Part 4: Terms used in ul
31、trasonic testing EN 12668-1, Non-destructive testing Characterization and verification of ultrasonic examination equipment Part 1: Instruments EN ISO 79631), Non-destructive testing Ultrasonic testing Specification for calibration block n 2 (ISO 7963:1985) 3 Terms and definitions For the purposes of
32、 this document, the terms and definitions given in EN 1330-4:2010 and the following apply. 3.1 dead zone depth of the zone immediately beneath the coupling surface of the work piece, in which it is not possible to detect a given reflector 3.2 focal distance near field length point on the acoustical
33、axis where the acoustic pressure is at its maximum 3.3 horizontal plane of a sound beam plane perpendicular to the vertical plane of the sound beam including the acoustical axis in the material 1) Under preparation. DIN EN 12668-2:2010-06 EN 12668-2:2010 (E) 6 3.4 operating frequency focentre freque
34、ncy arithmetic mean of upper and lower cut-off frequency 2olufff+= (1) NOTE In the frequency spectrum of an echo the upper and lower cut-off-frequencies are determined at -6 dB compared to the maximum amplitude. 3.5 peak-to-peak amplitude h maximum deviation between the largest positive and the larg
35、est negative cycles of the pulse NOTE See Figure 1. 3.6 probe data sheet sheet containing the information required by this standard NOTE The data sheet need not necessarily be a test certificate of performance. 3.7 pulse duration time interval over which the modulus of the unrectified pulse amplitud
36、e exceeds 10 % of its maximum amplitude, as shown in Figure 1 3.8 reference side reference side is the right side of an angle beam probe looking in the direction of the beam, unless otherwise specified by the manufacturer 3.9 relative bandwidth frelratio of the difference between the upper and lower
37、 cut-off frequencies fuand fland the centre frequency fofrel= (fu- fl)/fo 100 % NOTE The relative bandwidth is expressed in percent (%). 3.10 squint angle for straight-beam probes deviation between the axis of the beam and a perpendicular to the coupling surface at the emission point NOTE 1 See Figu
38、re 2. angle between the sides of the probe housing and the measured beam axis, projected onto the plane of the probe face NOTE 2 See Figure 3. 3.11 vertical plane of a sound beam plane in which the sound beam axis in the probe wedge and the sound beam axis in the inspected component both lie DIN EN
39、12668-2:2010-06 EN 12668-2:2010 (E) 7 4 General requirements for compliance An ultrasonic probe complies with this standard if it satisfies the following conditions: a) the probe shall comply with Clause 7; b) either a declaration of conformity, issued by a manufacturer operating a certified quality
40、 management system, or issued by an organization operating an accredited test laboratory shall be available; NOTE It is recommended that the certification is carried out in accordance with EN ISO 9001, or that the accreditation is carried out in accordance with EN ISO/IEC 17025. c) the probe shall b
41、e clearly marked to identify the manufacturer, and carry a unique serial number, showing operating frequency, transducer size, angle, or a permanent reference number from which this information can be traced; d) a technical specification (data sheet) for the appropriate type and series of probe whic
42、h defines the performance criteria in accordance with Clause 5 shall be available. The quality of probes will be assured in one of the following ways: e) by issuing a declaration of conformity based on statistical analysis where a number of identical probes are manufactured under a quality managemen
43、t system. The manufacturer shall supply a data sheet which includes the values of the specified parameters with tolerances; f) by issuing a declaration of conformity quoting the results of measurements made on each probe. 5 Technical specification for probes Table 1 gives the list of information to
44、be reported in a data sheet for all probes within the scope of this standard (I = Information, M = Measurement, C = Calculation). The data sheet shall also contain information concerning the ultrasonic instrument used for the test, its settings and coupling conditions, etc. The operating temperature
45、 range of the probe, and any special conditions for storage or protection during transport shall also be stated in the data sheet. For probes intended for use at elevated temperatures, the manufacturer shall provide information on the maximum operating temperature in relation to the time of use, and
46、 the effect of temperature on the sensitivity and on the beam angle. DIN EN 12668-2:2010-06 EN 12668-2:2010 (E) 8 Table 1 List of information to be given in a data sheet Category of probe Contact Immersion Straight beam Angle beam StraightInformation Compressional Shear Compressional Shear Compressi
47、onal to be given Single Double Single Single Double Single Double Single non-f. focus. non-f. focus. non-f. non-f. focus. non-f. focus. non-f. focus. non-f. focus. non-f. focus. Manufacturers name I I I I I I I I I I I I I I I Type of probe I I I I I I I I I I I I I I I Weight and size of probe I I
48、I I I I I I I I I I I I I Type of connectors I I I I I I I I I I I I I I I TR connectors interchangeable? I I I I I I Material of transducers I I I I I I I I I I I I I I I Shape and size of transducers I I I I I I I I I I I I I I I Material of wedge, delay I I I I I I I I I I I I Material of wear pl
49、ate I Wear allowance I I I I I I I I I I I I I = Information; M = Measurement; C = Calculation. continued DI N EN 12668- 2 : 2010 - 0 6 EN 12668-2:2010 (E) 9 Table 1 (continued) Category of probe Contact Immersion Straight beam Angle beam StraightParameters to be Compressional Shear Compressional Shear Compressional measured or calculated Single Double Single Single Dou
