DIN EN ISO 9614-3-2009 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3 Precision method for measurement by scanning (ISO 9614-3 2002.pdf

1、November 2009DEUTSCHE NORM English price group 18No part of this standard 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 17.140.20!$ZqC“155783

2、2www.din.deDDIN EN ISO 9614-3Acoustics Determination of sound power levels of noise sources using soundintensity Part 3: Precision method for measurement by scanning(ISO 9614-3:2002)English version of DIN EN ISO 9614-3:2009-11Akustik Bestimmung der Schallleistungspegel von Geruschquellen ausSchallin

3、tensittsmessungen Teil 3: Scanning-Verfahren der Genauigkeitsklasse 1 (ISO 9614-3:2002)Englische Fassung DIN EN ISO 9614-3:2009-11SupersedesDIN EN ISO 9614-3:2003-04www.beuth.deDocument comprises 46 pagesDIN EN ISO 9614-3:2009-11 2 National foreword This standard has been prepared by Technical Commi

4、ttee ISO/TC 43 “Acoustics”, Subcommittee SC 1 “Noise” (Secretariat: DS, Denmark), Working Group WG 25 “Measurement of sound intensity” in collaboration with Technical Committee CEN/TC 211 “Acoustics” (Secretariat: DS, Denmark). The responsible German body involved in its preparation was the Normenau

5、sschuss Akustik, Lrmminderung und Schwingungstechnik im DIN und VDI (Acoustics, Noise Control and Vibration Engineering Standards Committee in DIN and VDI), Technical Committee NA 001-01-04 AA Geruschemission von Maschinen und Anlagen; Messung, Minderung, Datensammlung. Amendment of the European Mac

6、hinery Directive has made it necessary to review Annexes ZA and ZB in terms of the essential requirements of EU Directive 98/37/EC and the revised Directive, 2006/42/EC. The technical substance of the standard has not been changed. The DIN Standards corresponding to the International Standards refer

7、red to in this document are as follows: ISO 3740 DIN EN ISO 3740 ISO 7574-4 DIN EN 27574-4 ISO 3741 DIN EN ISO 37411)ISO/TR 7849 DIN 45635-8 ISO 3743-1 DIN EN ISO 3743-11)ISO 9614-1 DIN EN ISO 9614-1 ISO 3743-2 DIN EN ISO 3743-2 ISO 9614-2 DIN EN ISO 9614-2 ISO 3744 DIN EN ISO 37441)ISO 12001 DIN EN

8、 ISO 12001 ISO 3745 DIN EN ISO 37451)IEC 60651 DIN EN 61672 (all parts) ISO 3746 DIN EN ISO 37451)IEC 60942 DIN EN 60942 ISO 3747 DIN EN ISO 37471)IEC 61043 DIN EN 61043 ISO 5725-1 DIN ISO 5725-1 IEC 61260 DIN EN 61260 ISO 7574-1 DIN EN 27574-1 GUM DIN V ENV 13005 The national standards are given in

9、 Annex NA “Bibliography”. Amendments This standard differs from DIN EN ISO 9614-3:2003-04 as follows: a) Annexes ZA and ZB have been revised to show the relationship between this standard and the Machinery Directive 98/37/EC and the new revised Machinery Directive 2006/42/EC. Previous editions DIN E

10、N ISO 9614-3: 2003-04 1) Under revision. DIN EN ISO 9614-3:2009-11 3 National Annex NA (informative) Bibliography DIN 45635-8, Determination of airborne noise emitted by machines by measurement of structure borne noise Basic requirements DIN V ENV 13005, Guide to the expression of uncertainty in mea

11、surement DIN EN 27574-1, Acoustics Statistical methods for determining and verifying stated noise emission values of machinery and equipment Part 1: General considerations and definitions DIN EN 27574-4, Acoustics Statistical methods for determining and verifying stated noise emission values of mach

12、inery and equipment Part 4: Methods for stated values for batches of machines DIN EN 60942, Electroacoustics Sound calibrators DIN EN 61043, Electroacoustics Instruments for the measurement of sound intensity Measurement with pairs of pressure sensing microphones DIN EN 61260, Electroacoustics Octav

13、e-band and fractional-octave-band filters DIN EN 61672 (all parts), Electroacoustics Sound level meters DIN EN ISO 3740, Acoustics Determination of sound power levels of noise sources Guidelines for the use of basic standards DIN EN ISO 3741, Acoustics Determination of sound power levels of noise so

14、urces using sound pres-sure Precision methods for reverberation rooms DIN EN ISO 3743-1, Acoustics Determination of sound power levels of noise sources Engineering methods for small, movable sources in reverberant fields Part 1: Comparison method for hard-walled test rooms DIN EN ISO 3743-2, Acousti

15、cs Determination of sound power levels of noise sources using sound pres-sure Engineering methods for small, movable sources in reverberant fields Part 2: Methods for special reverberation test rooms DIN EN ISO 3744, Acoustics Determination of sound power levels of noise sources using sound pres-sur

16、e Engineering method in an essential free field over a reflecting plane DIN EN ISO 3745, Acoustics Determination of sound power levels of noise sources using sound pres-sure Precision methods for anechoic and hemi-anechoic rooms DIN EN ISO 3746, Acoustics Determination of sound power levels of noise

17、 sources using sound pres-sure Survey method using an enveloping measurement surface over a reflecting plane DIN EN ISO 3747, Acoustics Determination of sound power levels of noise sources using sound pres-sure Comparison method for use in situ DIN EN ISO 9614-1, Acoustics Determination of sound pow

18、er levels of noise sources using sound intensity Part 1: Measurement at discrete points DIN EN ISO 9614-3:2009-11 4 DIN EN ISO 9614-2, Acoustics Determination of sound power levels of noise sources using sound intensity Part 2: Measurement by scanning DIN EN ISO 12001, Acoustics Noise emitted by mac

19、hinery and equipment Rules for the drafting and presentation of a noise test code DIN ISO 5725-1, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9614-3 August 2009 ICS 17.140.01

20、Supersedes EN ISO 9614-3:2002 English Version Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning (ISO 9614-3:2002) Acoustique - Dtermination par intensimtrie des niveaux de puissance acoustique mis par les sou

21、rces de bruit - Partie 3: Mthode de prcision pour mesurage par balayage (ISO 9614-3:2002) Akustik - Bestimmung der Schallleistungspegel von Geruschquellen aus Schallintensittsmessungen - Teil 3: Scanning-Verfahren der Genauigkeitsklasse 1 (ISO 9614-3:2002) This European Standard was approved by CEN

22、on 20 July 2009. 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 concerning such national standards may

23、 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). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CE

24、N Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlan

25、ds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in a

26、ny form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9614-3:2009: EContents 2 DIN EN ISO 9614-3:2009-11 EN ISO 9614-3:2009 (E) Page Foreword4 Introduction .5 1 Scope 7 2 Normative references 7 3 Terms and definitions .8 4 General requirements13 4.1 Size of sound sour

27、ce under test 13 4.2 Character of sound radiated by the source 13 4.3 Measurement uncertainty .13 5 Acoustic environment .15 5.1 Criteria for adequacy of the test environment15 5.2 Extraneous intensity .15 5.3 Wind and gas flows .15 5.4 Temperature .15 5.5 Configuration of the surroundings 15 5.6 At

28、mospheric conditions15 6 Instrumentation16 6.1 General16 6.2 Calibration and field check .16 6.3 Time-series of sound intensity and sound pressure .16 7 Installation and operation of the source .16 7.1 General16 7.2 Operating conditions of the source under test 17 8 Measurement of normal sound inten

29、sity component levels.17 8.1 Determination of measurement surface17 8.2 Determination of scanning paths and segments .17 8.3 Measurements18 8.4 Further actions.20 9 Determination of sound power level21 9.1 Calculation of partial sound powers for each partial surface of the measurement surface21 9.2

30、Calculation of normalized sound power level 21 10 Information to be recorded .21 Annex A (informative) List of symbols used in this part of ISO 961423 Annex B (normative) Calculation of field indicators .25 B.1 General25 B.2 Definition of field indicators .25 B.2.1 Temporal variability indicator, FT

31、25 B.2.2 Unsigned pressure-intensity indicator, np IF .25 B.2.3 Signed pressure-intensity indicator, npIF .26 B.2.4 Field non-uniformity indicator, FS.27 Annex C (normative) Procedure for achieving the desired accuracy28 C.1 Qualification requirements .28 C.1.1 General28 3 EN ISO 9614-3:2009 (E) DIN

32、 EN ISO 9614-3:2009-11 C.1.2 Check for the adequacy of the averaging time.28 C.1.3 Check for the repeatability of the scan on a partial surface .28 C.1.4 Check for the adequacy of the measurement equipment .28 C.1.5 Check for the presence of strong extraneous noise .29 C.1.6 Check for the field non-

33、uniformity.29 C.2 Action to be taken to increase the grade of accuracy of determination29 Annex D (informative) Effects of airflow on measurement of sound intensity.32 Annex E (informative) Effect of sound absorption within the measurement surface33 Annex F (informative) Measurement surface and scan

34、ning procedure 34 Annex G (informative) Procedure for obtaining time-averaged intensities and squared pressures from a sequence of short-time averaged intensities and squared pressures .35 Annex H (informative) Normalization of sound power level .36 H.1 General36 H.2 Calculation of normalized sound

35、power level 36 Annex I (informative) Field indicators used in ISO 9614-1, -2 and -3.38 Bibliography39 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC .41 Annex ZB (informative) Relationship between this European Standard and

36、the Essential Requirements of EU Directive 2006/42/EC .42 Foreword 4 The text of ISO 9614-3:2002 has been prepared by Technical Committee ISO/TC 43 “Acoustics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 9614-3:2009 by Technical Committee CEN/TC 211

37、“Acoustics” the secretariat of which is held by DS. 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 February 2010, and conflicting national standards shall be withdrawn at the latest by February 2

38、010. 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 document supersedes EN ISO 9614-3:2002. This document has been prepared unde

39、r a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directives. For relationship with EC Directives, see informative Annexes ZA and ZB, which are integral parts of this document. According to the CEN/CENELEC Internal

40、Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

41、Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 9614-3:2002 has been approved by CEN as a EN ISO 9614-3:2009 without any modification. DIN EN ISO 9614-3:2009-11 EN ISO 9614-3:2009 (E) Introducti

42、on 0.1 The sound power radiated by a source is equal in value to the integral of the scalar product of the sound intensity vector and the associated elemental area vector over any surface totally enclosing the source. Other International Standards which describe methods of determination of the sound

43、 power levels of noise sources, principally ISO 3740 to ISO 3747, without exception specify sound pressure level as the primary acoustic quantity to be measured. The relationship between sound intensity level and sound pressure level at any point depends on the characteristics of the source, the cha

44、racteristics of the measurement environment, and the disposition of the measurement positions with respect to the source. The procedures specified in ISO 3740 to ISO 3747 are not always applicable, for the following reasons. a) Specific facilities are necessary if high precision is required. It is f

45、requently not possible to install, and operate, large pieces of equipment in such facilities. b) They cannot be used in the presence of high levels of extraneous noise generated by sources other than that under investigation. 0.2 This part of ISO 9614 specifies methods of determining the sound power

46、 levels of sources, within specific ranges of uncertainty, under test conditions which are less restricted than those required by ISO 3740 to ISO 3747. It is recommended that personnel performing sound intensity measurements according to this part of ISO 9614 are appropriately trained and experience

47、d. 0.3 This part of ISO 9614 complements ISO 9614-1, ISO 9614-2 and the ISO 3740 to ISO 3747 series, which specify various methods for the determination of sound power levels of machines and equipment. It differs from the ISO 3740 to ISO 3747 series principally in three aspects. a) Measurements are

48、made of sound intensity as well as of sound pressure. b) The uncertainty of the sound power level determined by the method specified in this part of ISO 9614 is classified according to the results of specified ancillary tests and calculations performed in association with the test measurements. c) C

49、urrent limitations of intensity measurement equipment which conforms to IEC 61043 restrict measurements to the one-third octave range 50 Hz to 6,3 kHz. Octave band and band-limited A-weighted values are determined from the constituent one-third-octave band values. 0.4 The integral over any surface totally enclosing the source of the scalar product of the sound intensity vector and the associated elemental area vector provides a measure of the sound power radiated directly into the air by all sourc