EN 60118-0-2015 en Electroacoustics - Hearing aids - Part 0 Measurement of the performance characteristics of hearing aids.pdf

1、BSI Standards PublicationElectroacoustics Hearing aidsPart 0: Measurement of the performance characteristics of hearing aidsBS EN 60118-0:2015National forewordThis British Standard is the UK implementation of EN 60118-0:2015. It isidentical to IEC 60118-0:2015. It supersedes BS EN 60118-0:1993, BS E

2、N60118-2:1996, BS EN 60118-1:1995 and BS EN 60118-6:1999, which arewithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/29, Electroacoustics.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not

3、 purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 76794 4ICS 17.140.50Compliance with a British Standard cannot confer immunity fromlegal oblig

4、ations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60118-0:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60118-0 August 2015

5、 ICS 17.140.50 Supersedes EN 60118-0:1993, EN 60118-1:1995, EN 60118-2:1995, EN 60118-6:1999 English Version Electroacoustics - Hearing aids - Part 0: Measurement of the performance characteristics of hearing aids (IEC 60118-0:2015) Electroacoustique - Appareils de correction auditive - Partie 0: Me

6、sure des caractristiques fonctionnelles des appareils de correction auditive (IEC 60118-0:2015) Akustik - Hrgerte - Teil 0: Messung der Leistungsmerkmale von Hrgerten (IEC 60118-0:2015) This European Standard was approved by CENELEC on 2015-07-14. CENELEC members are bound to comply with the CEN/CEN

7、ELEC 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-CENELEC Management Centre

8、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 CEN-CENELEC Management Centre has the same status a

9、s the official versions. CENELEC members are 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, Lu

10、xembourg, Malta, the Netherlands, Norway, 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

11、 CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60118-0:2015 E BS EN 60118-0:2015EN 60118-0:2015 2 European foreword The text of document 29/867A/FDIS, future ed

12、ition 3 of IEC 60118-0, prepared by IEC TC 29, Electroacoustics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60118-0:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical nati

13、onal standard or by endorsement (dop) 2016-04-14 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-07-14 This document supersedes EN 60118-0:1993, EN 60118-1:1995, EN 60118-2:1995, EN 60118-6:1999. Attention is drawn to the possibility that som

14、e of the elements 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 60118-0:2015 was approved by CENELEC as a European Standard without an

15、y modification. In the official version, for Bibliography, the following note has to be added for the standard indicated : IEC 60068 (series) NOTE Harmonized as EN 60068 (series). IEC 60118-7:2005 NOTE Harmonized as EN 60118-7:2005. IEC 60118-8:2005 NOTE Harmonized as EN 60118-8:2005. IEC 60118-12 N

16、OTE Harmonized as EN 60118-12. IEC 60118-15 NOTE Harmonized as EN 60118-15. IEC 60318-1 NOTE Harmonized as EN 60318-1. IEC 60118-15 NOTE Harmonized as EN 60118-15. IEC 60318-4:2010 NOTE Harmonized as EN 60318-4:2010. BS EN 60118-0:2015EN 60118-0:2015 3 Annex ZA (normative) Normative references to in

17、ternational publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest editio

18、n of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is

19、available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60318-5 - Electroacoustics - Simulators of human head and ear - Part 5: 2 cm coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts EN 60318-5 - ISO 3 - Preferred numbers; Series of pr

20、eferred numbers - - BS EN 60118-0:2015 2 IEC 60118-0:2015 IEC 2015 CONTENTS FOREWORD . 5 1 Scope 7 2 Normative references. 7 3 Terms and definitions 8 4 General conditions . 12 4.1 Acoustic test method . 12 4.2 Acoustic coupler 13 4.3 Measurement frequency range 13 4.4 Reporting of data 13 5 Test en

21、closure and test equipment . 13 5.1 General . 13 5.2 Unwanted stimuli in the test enclosure . 13 5.3 Sound source 13 5.4 Measurement system for the measurement of the sound pressure level and harmonic distortion produced by a hearing aid . 14 5.5 Direct-current measuring system . 14 5.6 Magnetic fie

22、ld source for ETLS and MASL measurements 15 6 Test conditions 15 6.1 General . 15 6.2 Control of the sound field 16 6.3 Measurement configuration for directional hearing aids 17 6.4 Normal operating conditions for a hearing aid 18 6.4.1 General . 18 6.4.2 Battery or supply voltage 18 6.4.3 Settings

23、of controls 19 6.4.4 Ambient conditions . 19 6.4.5 Sound outlet system . 19 6.4.6 Accessories . 20 7 Test procedures 20 7.1 Frequency response curves . 20 7.2 OSPL90 frequency response curve 20 7.3 Full-on gain response curve 21 7.4 Basic frequency response curve 21 7.4.1 Test procedure . 21 7.4.2 F

24、requency range 22 7.4.3 Reference test gain (RTG) . 23 7.5 Total harmonic distortion . 23 7.6 Equivalent input noise . 23 7.7 Battery current 23 7.8 Measurements for hearing aids having induction pick-up coil 24 7.8.1 General . 24 7.8.2 Equivalent test loop sensitivity (ETLS) 24 7.8.3 Maximum HFA ma

25、gneto-acoustical sensitivity level (HFA MASL) of induction pick-up coil 24 8 Characteristics of electrical input circuits for hearing aids . 24 8.1 Electrical characteristics 24 8.1.1 General . 24 BS EN 60118-0:2015IEC 60118-0:2015 IEC 2015 3 8.1.2 Input impedance 25 8.1.3 Input sensitivity 25 8.2 M

26、echanical characteristics and electrical function of connector system for electrical input. 25 9 Additional optional test procedures 25 9.1 General . 25 9.2 Effects of tone control and gain control 25 9.2.1 Basic frequency response: effect of tone control . 25 9.2.2 Frequency response: effect of gai

27、n control position . 25 9.2.3 Characteristics of the gain control 26 9.3 Intermodulation distortion 26 9.4 Effects of variation of battery or supply voltage and internal resistance 26 9.4.1 Full-on gain 26 9.4.2 OSPL90 . 27 9.4.3 Total harmonic distortion 27 9.4.4 Total intermodulation distortion 27

28、 9.5 Equivalent input noise in one-third-octave bands . 27 9.6 Additional measurements for hearing aids having induction pick-up coil 30 9.6.1 General . 30 9.6.2 Basic frequency response 30 9.6.3 Frequency response with full-on gain control setting . 30 9.6.4 Effect of gain control position on frequ

29、ency response 30 9.6.5 Harmonic distortion 31 9.7 Additional measurements for hearing aids having induction pick-up coil for use with a telephone . 31 9.7.1 General . 31 9.7.2 SPLITS response curve 32 9.7.3 HFA-SPLITS 32 9.7.4 Relative simulated equivalent telephone sensitivity (RSETS). 32 9.8 Addit

30、ional measurements applying to AGC hearing aids . 33 9.8.1 General . 33 9.8.2 Steady-state input-output characteristics 33 9.8.3 Dynamic AGC characteristics (attack and release time) 34 9.9 Additional optional measurements with ear simulator, according to IEC 60318-4 34 9.9.1 General . 34 9.9.2 Outp

31、ut sound pressure level frequency response curve for an input sound pressure level of 90 dB 34 9.9.3 Full-on gain response curve . 34 9.9.4 Basic frequency response curve . 34 9.9.5 Presentation of data . 34 10 Maximum permitted expanded uncertainty of measurements . 34 Bibliography . 36 Figure 1 Ex

32、ample of test arrangement for behind-the-ear hearing aid 16 Figure 2 Example of test arrangement for in-the-ear hearing aid . 17 Figure 3 Example of test arrangement for directional hearing aid 18 Figure 4 Example of OSPL90 curve and basic frequency response curve 21 BS EN 60118-0:2015 4 IEC 60118-0

33、:2015 IEC 2015 Figure 5 Example of determination of frequency range from basic frequency response curve . 22 Figure 6 Example of hearing aid acoustic gain 28 Figure 7 Example of hearing aid output noise and test equipment noise 29 Figure 8 Hearing aid equivalent input noise and ambient noise . 29 Fi

34、gure 9 Telephone magnetic field simulator (TMFS) 31 Figure 10 Example of hearing aids on TMFS for SPLITS test 32 Figure 11 Example of a steady-state input-output characteristic 33 Table 1 Resistors and open circuit voltages for zinc-air battery simulators . 19 Table 2 Distortion test frequencies and

35、 input sound pressure levels 23 Table 3 Values of Umaxfor basic measurements 35 BS EN 60118-0:2015IEC 60118-0:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTROACOUSTICS HEARING AIDS Part 0: Measurement of the performance characteristics of hearing aids FOREWORD 1) The International

36、 Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising 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 fi

37、elds. To this end and in addition to other activities, IEC publishes International Standards, 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 I

38、EC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardiza

39、tion (ISO) in accordance with conditions determined by agreement between the two organizations. 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 represen

40、tation from all interested IEC National Committees. 3) IEC Publications have the form of 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 ca

41、nnot be held responsible for the way in which they are used or for any misinterpretation 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 publicati

42、ons. Any divergence between any IEC Publication and the corresponding national or regional 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, a

43、ccess to IEC marks of conformity. IEC is not responsible for any services carried out by 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 i

44、ndividual experts and members of its technical committees and IEC National Committees for 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 up

45、on, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative 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

46、 of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60118-0 has been prepared by IEC technical committee 29: Electroacoustics. This third edition cancels and replaces the second edit

47、ion published in 1983 and its Amendment 1:1994 as well as IEC 60118-1:1995, Amendment 1:1998, IEC 60118-2:1983, Amendment 1:1993, Amendment 2:1997 and IEC 60118-6:1999. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to th

48、e previous edition: a) the use of an acoustic coupler according to IEC 60318-5; b) the addition of measurements for automatic gain control circuits, for induction pick-up coil inputs and for electrical inputs. BS EN 60118-0:2015 6 IEC 60118-0:2015 IEC 2015 The text of this standard is based on the f

49、ollowing documents: FDIS Report on voting 29/867A/FDIS 29/874/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60118 series, published under the general title Electroacoustics Hearing aids, can be found on the IEC website. Future standards in this series will carry the new general tit