IEC 62459:2010
(Main)Sound system equipment - Electroacoustical transducers - Measurement of suspension parts
Sound system equipment - Electroacoustical transducers - Measurement of suspension parts
IEC 62459:2010 applies to the suspension parts of electroacoustic transducers (for example, loudspeakers). It defines the parameters and measurement method to determine the properties of suspension parts like spiders, surrounds, diaphragms or cones before being assembled in the transducer. The measurement results are needed for engineering design purposes and for quality control. Furthermore, this method is intended to improve the correlation of measurements between suspension-part manufacturers and loudspeaker manufacturers. The measurement methods provide parameters based on linear and nonlinear modelling of the suspension part and uses both static and dynamic techniques. It cancels and replaces IEC/PAS 62459 published in 2006. It constitutes a technical revision. The main changes are:
- descriptions of the methods of measurement are adjusted to the state of the technology;
- addition of Clauses 5 to 13;
- integration of Annex A in the main body of the standard;
- overall textual review.
The contents of the corrigendum of November 2015 have been included in this copy.
Equipements pour systèmes électroacoustiques – Transducteurs électroacoustiques – Mesurage des pièces de suspension
L'IEC 62459:2010 s'applique aux pièces de suspension des transducteurs électroacoustiques (haut-parleurs, par exemple). Elle définit les paramètres et la méthode de mesurage pour déterminer les propriétés des pièces de suspension comme les spiders, les suspensions périphériques, les diaphragmes ou les cônes, avant leur assemblage dans le transducteur. Les résultats de mesurage sont nécessaires pour la conception technique et le contrôle qualité. En outre, cette méthode a pour objet d'améliorer la corrélation des mesures entre les fabricants de pièces de suspension et de haut-parleurs.
Les méthodes de mesurage fournissent des paramètres déterminés par une modélisation linéaire et non linéaire de la pièce de suspension; elles reposent sur des techniques statiques et dynamiques.
L'IEC 62459:2010 annule et remplace l'IEC/PAS 62459 parue en 2006. Elle constitue une révision technique. Les principales modifications sont les suivantes:
– la description des méthodes de mesurage a été adaptée à l'état de la technologie;
– les Articles 5 à 13 ont été ajoutés;
– l'Annexe A "Code de pratique" a été intégrée à la partie principale de la norme;
– le texte a été revu dans son intégralité.
The contents of the corrigendum of November 2015 have been included in this copy.
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IEC 62459 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
colour
inside
Sound system equipment – Electroacoustical transducers – Measurement of
suspension parts
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 62459 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
colour
inside
Sound system equipment – Electroacoustical transducers – Measurement of
suspension parts
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
R
ICS 33.160.50 ISBN 978-2-88910-734-6
– 2 – 62459 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .7
4 Test conditions .10
5 Clamping of the suspension part .10
5.1 General .10
5.2 Destructive measurement.10
5.3 Non-destructive measurement .10
5.4 Clamping position.10
5.5 Guiding the inner clamping part.11
5.6 Reporting the clamping condition.11
6 Methods of measurement .11
6.1 Static measurement.11
6.2 Quasi-static measurement.11
6.3 Incremental dynamic measurement .11
6.4 Full dynamic measurement.11
7 Static displacement x (F ) .12
static dc
7.1 Characteristic to be specified .12
7.2 Method of measurement .12
7.2.1 General .12
7.2.2 Test equipment.12
7.2.3 Procedure.12
7.2.4 Presentation of results.13
8 Static stiffness K (x ) .13
static static
8.1 Characteristic to be specified .13
8.2 Method of measurement .13
8.3 Presentation of results .13
9 Lowest cone resonance frequency, f .13
9.1 Characteristic to be specified .13
9.2 Method of measurement .14
9.2.1 General .14
9.2.2 Test equipment.14
9.2.3 Procedure.14
9.2.4 Presentation of results.15
10 Dynamic stiffness K(x ) .15
ac
10.1 Characteristic to be specified .15
10.2 Method of measurement .15
10.2.1 General .15
10.2.2 Test equipment.15
10.2.3 Procedure.16
10.2.4 Presentation of results.17
11 Coefficients of the power series expansion of K(x).17
11.1 Characteristics to be specified.17
62459 © IEC:2010(E) – 3 –
11.2 Presentation of results .17
12 Effective stiffness K (x ).17
eff peak
12.1 Characteristic to be specified .17
12.2 Method of measurement .17
12.3 Presentation of results .18
13 Mechanical resistance R .18
13.1 Characteristic to be specified .18
13.2 Method of measurement .18
13.3 Presentation of results .18
Bibliography.19
Figure 1 – Measurement of static displacement .12
Figure 2 – Measurement of lowest cone resonance f .14
Figure 3 – Pneumatic excitation of the suspension part.16
Figure 4 – Magnitude response of the normalized transfer function, H(f)/H(0), versus
frequency, f.17
– 4 – 62459 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SOUND SYSTEM EQUIPMENT –
ELECTROACOUSTICAL TRANSDUCERS –
MEASUREMENT OF SUSPENSION PARTS
FOREWORD
1) The International 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 fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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International Standard IEC 62459 has been prepared by IEC technical committee 100: Audio,
video and multimedia systems and equipment.
This first edition cancels and replaces the IEC/PAS 62459 published in 2006. It constitutes a
technical revision. The main changes are listed below:
– descriptions of the methods of measurement are adjusted to the state of the technology;
– addition of Clauses 5 to 13;
– integration of Annex A “Code of practice” at the main part of the standard;
– overall textual review.
62459 © IEC:2010(E) – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
100/1625/FDIS 100/1648/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.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a re
...
IEC 62459 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Sound system equipment – Electroacoustical transducers – Measurement of
suspension parts
Équipements pour systèmes électroacoustiques – Transducteurs
électroacoustiques – Mesurage des pièces de suspension
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
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About the IEC
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International Standards for all electrical, electronic and related technologies.
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IEC 62459 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Sound system equipment – Electroacoustical transducers – Measurement of
suspension parts
Équipements pour systèmes électroacoustiques – Transducteurs
électroacoustiques – Mesurage des pièces de suspension
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.50 ISBN 978-2-8322-1083-7
– 2 – IEC 62459:2010 IEC 2010
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Test conditions . 10
5 Clamping of the suspension part . 10
5.1 General . 10
5.2 Destructive measurement . 10
5.3 Non-destructive measurement . 10
5.4 Clamping position . 10
5.5 Guiding the inner clamping part . 11
5.6 Reporting the clamping condition. 11
6 Methods of measurement . 11
6.1 Static measurement. 11
6.2 Quasi-static measurement . 11
6.3 Incremental dynamic measurement . 11
6.4 Full dynamic measurement . 11
7 Static displacement x (F ) . 12
static dc
7.1 Characteristic to be specified . 12
7.2 Method of measurement . 12
7.2.1 General . 12
7.2.2 Test equipment . 12
7.2.3 Procedure . 12
7.2.4 Presentation of results . 13
8 Static stiffness K (x ) . 13
static static
8.1 Characteristic to be specified . 13
8.2 Method of measurement . 13
8.3 Presentation of results . 13
9 Lowest cone resonance frequency, f . 13
9.1 Characteristic to be specified . 13
9.2 Method of measurement . 14
9.2.1 General . 14
9.2.2 Test equipment . 14
9.2.3 Procedure . 14
9.2.4 Presentation of results . 15
10 Dynamic stiffness K(x ) . 15
ac
10.1 Characteristic to be specified . 15
10.2 Method of measurement . 15
10.2.1 General . 15
10.2.2 Test equipment . 15
10.2.3 Procedure . 16
10.2.4 Presentation of results . 17
11 Coefficients of the power series expansion of K(x) . 17
11.1 Characteristics to be specified . 17
11.2 Presentation of results . 17
12 Effective stiffness K (x ) . 17
eff peak
12.1 Characteristic to be specified . 17
12.2 Method of measurement . 17
12.3 Presentation of results . 18
13 Mechanical resistance R . 18
13.1 Characteristic to be specified . 18
13.2 Method of measurement . 18
13.3 Presentation of results . 18
Bibliography . 19
Figure 1 – Measurement of static displacement . 12
Figure 2 – Measurement of lowest cone resonance frequency f . 14
Figure 3 – Pneumatic excitation of the suspension part . 16
Figure 4 – Magnitude response of the normalized transfer function, H(f)/H(0), versus
frequency, f. 17
– 4 – IEC 62459:2010 IEC 2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SOUND SYSTEM EQUIPMENT –
ELECTROACOUSTICAL TRANSDUCERS –
MEASUREMENT OF SUSPENSION PARTS
FOREWORD
1) The International 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 fields. 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 IEC 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 Standardization (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 sub
...
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