1、BRITISH STANDARD BS EN 61329:1996 IEC 1329:1995 Sound system equipment Methodsof measuring and specifying the performance of sounders (electroacoustic transducers for tone production) The European Standard EN61329:1996 has the status of a British Standard ICS 33.160.30BSEN61329:1996 This British Sta
2、ndard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comes intoeffect on 15August1996 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference EPL/100/3 Draft for comm
3、ent 93/203886 DC ISBN 0 580 26103 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/100, Audio, video and multimedia systems and equipment, to Subcommittee EPL/100/3, Equipment and systems in the field of audio, video
4、 and audiovisual engineering, upon which the following bodies were represented: Association of British Theatre Technicians Audio Engineering Society British Broadcasting Corporation British Educational Suppliers Association British Radio and Electronic Equipment Manufacturers Association British Tel
5、ecommunications plc Federation of British Audio Federation of the Electronics Industry Independent Television Association Institute of Sound and Communication Engineers Institution of Electrical Engineers International Association of Broadcasting Manufacturers Professional Lighting and Sound Associa
6、tion Royal Institute of British Architects Society of Cable Television Engineers Amendments issued since publication Amd. No. Date CommentsBSEN61329:1996 BSI 10-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN 61329 3 List of references Inside
7、 back coverBSEN61329:1996 ii BSI 10-1999 National foreword This British Standard has been prepared by Subcommittee EPL/100/3and is the English language version of EN61329:1996 Sound system equipment Methods of measuring and specifying the performance of sounders (electroacoustic transducers for tone
8、 production), published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC1329:1995, published by the International Electrotechnical Commission (IEC). Additional information a CENELEC editorial correction has been incorporated; In Figure 4 and Figure 5
9、 “(see 5.6.1)” has been replaced by “(see5.5.1)”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obli
10、gations. Cross-references Publication referred to Corresponding British Standard EN60651:1994 (IEC651:1979) BS EN60651:1994 Specification for sound level meters EN1094-1:1994 BS EN61094 Specification for measurement microphones (IEC1094-1:1992) BS EN61094-1:1995 Specifications for laboratory standar
11、d microphones EN1094-4:1995 (IEC1094-4:1995) BS EN61094-4:1996 Specifications for working standard microphones BS6840 Sound system equipment HD483.1 S2:1989 (IEC268-1:1985) Part1:1987 Method for specifying and measuring general characteristics used for equipment performance HD483.2 S2:1993 (IEC 268-
12、2:1987) Part 2:1993 Glossary of general terms and calculation methods Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 12, an inside back cover and a back cover. This standard has been updated (see copyright date) and may hav
13、e had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61329 January 1996 ICS 17.140.50 Descriptors: Electroacoustics, electroacoustic transducers, acoustic signals, definitions, characteristics, per
14、formance evaluation, quality, classification, measurement methods English version Sound system equipment Methods of measuring and specifying the performance of sounders (electroacoustic transducers for tone production) (IEC 1329:1995) Equipements pour systmes lectroacoustiques Mthodes de mesure et d
15、e spcification de la qualit de fonctionnement des sondeurs (transducteurs lectroacoustiques de production de sons) (CEI 1329:1995) Gerte fr Tonsysteme Verfahren zur Messung und Angabe der Leistungskennwerte von Schallgebern (Elektroakustische Wandler zur Tonerzeugung) (IEC 1329:1995) This European S
16、tandard was approved by CENELEC on 1995-11-28. CENELEC 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 conc
17、erning such national standards may be obtained on application to the Central 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
18、 its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spa
19、in, Sweden, Switzerland and United Kingdom. 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 1996 Copyright reserved to CENELEC mem
20、bers Ref. No. EN 61329:1996 EEN61329:1996 2 BSI 10-1999 Foreword The text of document84/407 + 407A/DIS, future edition1of IEC1329, prepared by IEC TC84, Equipment and systems in the field of audio, video and audiovisual engineering, was submitted to the IEC-CENELEC parallel vote and was approved by
21、CENELEC as EN61329on1995-11-28. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given for information only. In this standard, Annex ZA is normative and Annex A is informative. Annex ZA has been added by CENELEC
22、. Contents Page Foreword 2 1 Scope and object 3 2 Normative references 3 3 Definitions and symbols 3 3.1 Classification, structures and components 3 3.2 Characteristics, symbols and units 3 4 Rated conditions 4 5 Characteristics and measuring methods 5 5.1 Measuring conditions 5 5.2 Measuring equipm
23、ent 5 5.3 Electroacoustic transducer characteristicsofthe sounder 6 5.4 Electrical and mechanical characteristicsofsounders 7 5.5 Piezoelectric diaphragm 7 6 Physical and other characteristics 7 6.1 Characteristics for all transducers 7 6.2 Characteristics for sounders 7 6.3 Characteristics for piez
24、oelectric diaphragms 7 7 Classification of the characteristics to be specified 8 Annex A (informative) Bibliography 12 Annex ZA (normative) Normative references tointernational publications with their corresponding European publications 12 Figure 1 Voltage and d.c. component of square-wave signals 9
25、 Figure 2 Diagram of sounder measuring system 10 Figure 3 Diagram of sounder testing system 11 Figure 4 Diagram of piezoelectric diaphragm measuring system 11 Figure 5 Example of a diaphragm supporter 11 Table 1 Characteristics of sounders to bespecified, and classification 8 Table 2 Characteristics
26、 of piezoelectric diaphragm to be specified, and classification 8 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1996-09-01 latest date by which the national standards conflicting with the EN have to be wit
27、hdrawn (dow) 1996-09-01EN61329:1996 BSI 10-1999 3 1 Scope and object This International Standard is applicable to sounders, which are treated as entirely passive electroacoustic transducer elements. Piezoelectric diaphragms, which are the principal components of piezoelectric sounders, are also incl
28、uded. Buzzers which are sound sources with built-in electric circuits are excluded. The object of this standard is to standardize the definitions relating to these electroacoustic transducers, and to list characteristics to be specified and the relevant methods of measurement. 2 Normative references
29、 The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agreements based on this I
30、nternational Standards are encouraged to investigate the possibility of applying the most recent editions of the normative documents listed below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 268-1:1985, Sound system equipment Part1:General. IEC 268-2:198
31、7, Sound system equipment Part2:Explanation of general terms and calculation methods. IEC 651:1979, Sound level meters. IEC 1094-1:1992, Measurement microphones Part1: Specifications for laboratory standard microphones. IEC 1094-4:1995, Measurement microphones Part4: Specifications for working stand
32、ard microphones. 3 Definitions and symbols For the purpose of this International Standard, the following definitions and symbols apply. 3.1 Classification, structures and components 3.1.1 sounder electroacoustic transducer for the production of single or multiple tone signals 3.1.2 buzzer device con
33、sisting of a sounder and an electric circuit for self-excited or externally excited oscillation NOTEBuzzers are not included in this standard. 3.1.3 electromagnetic sounder sounder consisting of a diaphragm with an electromagnetic driver (e.g. a moveable armature or a magnet driven by electromagneti
34、c force), built in a housing 3.1.4 electrodynamic sounder sounder consisting of a diaphragm with an electro-dynamic driver (e.g. a moveable coil or flat electric conductor pattern in a magnetic field), built in a housing 3.1.5 piezoelectric sounder sounder consisting of a piezoelectric diaphragm bui
35、lt in a housing 3.1.6 piezoelectric diaphragm diaphragm consisting of a metal plate and one or two piezoelectric ceramic plates cemented together so that radial expansion and contraction of the ceramic plate(s) is transformed to bending of the diaphragm for sound radiation 3.1.7 piezoelectric cerami
36、c plate; piezoelectric ceramic disc thin plate made of a piezoelectric ceramic, for example lead zirconate titanate (PZT) ceramic, of which each side is metallized. The ceramic plate is polarized so as to deform radially when a voltage is applied across it 3.2 Characteristics, symbols and units 3.2.
37、1 input voltage (sinusoidal signal) RMS voltage of a sinusoidal signal applied to a sounder or a piezoelectric diaphragm. Symbol: U rms , unit: V 3.2.2 input voltage (square wave signal) peak-to-peak voltage of a square-wave signal applied to a sounder. Symbol: U pp , unit: V NOTEThe sounder or piez
38、oelectric diaphragm may require, or tolerate, a d.c. component in addition to the square wave, in which case the required or tolerated signal waveform will be specified, as illustrated in Figure 1. 3.2.3 d.c. polarity (of an electromagnetic or an electrodynamic sounder) direction of the d.c. compone
39、nt applied to an electromagnetic or electrodynamic sounder which is designed to be driven by a positively-biased or negatively-biased square-wave input voltageEN61329:1996 4 BSI 10-1999 3.2.4 direction of polarization (of a piezoelectric ceramic plate) direction of the d.c. voltage, applied for pola
40、rization of the piezoelectric ceramic during production 3.2.5 resonant frequency (of a sounder) frequency within the rated frequency range, at which the output sound pressure of a sounder shows a local maximum. Symbol: f r , unit: Hz 3.2.6 resonant frequency (of a piezoelectric diaphragm) frequency
41、close to the eigenfrequency of the first symmetrical vibration mode for the free boundary condition, at which the electrical impedance of the piezoelectric diaphragm shows a local minimum. Symbol: f r , unit: Hz 3.2.7 anti-resonant frequency (of a piezoelectric diaphragm) frequency close to the eige
42、nfrequency of the first symmetrical vibration mode for the free boundary condition, at which the electrical impedance of a piezoelectric diaphragm shows a local maximum. Symbol: f a , unit: Hz 3.2.8 sensitivity level to voltage (with A-weighting) output sound pressure level of a sounder measured usi
43、ng a sound level meter with A-weighting, referred to an input voltage of1V and to a distance of1m. The measuring frequency and input signal waveform are as specified by the manufacturer. Symbol: S A , unit: dB ref. 204Pa NOTEThe A-weighting characteristic is specified in IEC651. 3.2.9 distance to me
44、asuring point: distance between the reference point of a sounder to be measured and the reference point of the microphone used for the measurements, specified as one of the measuring conditions. Symbol: r, unit: m 3.2.10 principal axis (of microphone) line through the geometrical centre, and perpend
45、icular to the reference plane, of the microphone used for measurement NOTEThe front surface of the microphone should be taken as the reference plane, if the reference plane of the microphone is not specified by the manufacturer. 3.2.11 reference point (of microphone) point where the principal axis o
46、f the microphone intersects the reference plane. For additional information, see note to 3.2.10 4 Rated conditions For a full explanation of the terms “rated value” and “rated condition”, see IEC268-2. The following conditions shall be specified by the manufacturer of the sounder. 4.1 Rated input vo
47、ltage The continuous input voltage at which the sounder operates normally for the specified period of time. The frequency and waveform of the input signal shall be specified. Symbol: U r , unit: V. 4.2 Rated maximum input voltage The maximum voltage which can be applied to the sounder for a specifie
48、d short time. The frequency and waveform of the input signal shall be specified. Symbol: U m , unit: V. 4.3 Rated frequency range The frequency range for continuous sinusoidal input signal over which the sounder can operate normally. The input voltage shall be specified. 4.4 Rated resistance The d.c
49、. resistance of an electromagnetic or electrodynamic sounder specified for matching purposes. Symbol: R r , unit: 7 4.5 Rated capacitance The electrical capacitance of the piezoelectric sounder specified for matching purposes. Symbol: C r , unit: nF. 4.6 Principal axis (of sounder) The line through the geometrical centre of the sound hole(s), perpendicular to the front surface of the sounder. For additional information, see note to 4.7. 4.7 Reference point (of sounder) The point where the principal axis of the sounder intersects the f
