Sound system equipment - Electroacoustical transducers - Measurement of large signal parameters

IEC 62458:2010 applies to transducers such as loudspeaker drive units, loudspeaker systems, headphones, micro-speakers, shakers and other actuators using either an electro-dynamical or electro-magnetic motor coupled with a mechanical suspension. The large signal behaviour of the transducer is modelled by a lumped parameter model considering dominant nonlinearities such as force factor, stiffness and inductance. It defines the basic terms and parameters of the model, the methods of measurements and the way the results should be reported. It cancels and replaces IEC/PAS 62458 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 4 to 15;
- integration of Annex A in the main body of the standard;
- overall textual review.

Équipements pour systèmes électroacoustiques - Transducteurs électroacoustiques - Mesurage des paramètres de signaux forts

L'IEC 62458:2010 s'applique aux transducteurs tels que les unités motrices de haut-parleurs, les systèmes de haut-parleurs, les casques, les micro-haut-parleurs, les vibrateurs et autres actionneurs qui utilisent un moteur électrodynamique ou électromagnétique couplé à une suspension mécanique. Le comportement des signaux forts du transducteur est modélisé par un modèle de paramètres localisés qui tient compte des non-linéarités dominantes telles que le facteur de force, la rigidité et l'inductance, comme cela est représenté à la Figure 1. Cette norme définit les termes et paramètres de base du modèle, ainsi que les méthodes de mesurage et la manière dont il convient de consigner les résultats.
L'IEC 62458:2010 annule et remplace l'IEC/PAS 62458 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 4 à 15 ont été ajoutés;
- l'Annexe A a été intégrée au corps de la norme;
- le texte a été revu dans son intégralité.

General Information

Status
Published
Publication Date
26-Jan-2010
Current Stage
PPUB - Publication issued
Start Date
31-Jan-2010
Completion Date
27-Jan-2010
Ref Project

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IEC 62458
®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD

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Sound system equipment – Electroacoustical transducers – Measurement of
large signal parameters



IEC 62458:2010(E)

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IEC 62458
®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD

colour
inside

Sound system equipment – Electroacoustical transducers – Measurement of
large signal parameters


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
T
ICS 33.160.50 ISBN 978-2-88910-733-9
® Registered trademark of the International Electrotechnical Commission

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– 2 – 62458 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms and definitions .7
4 Test signals.9
4.1 General .9
4.2 Large d.c. signal.9
4.3 Large d.c. signal and small a.c. signal.9
4.4 Broadband noise signal .9
4.5 Music .9
5 Mounting condition .10
5.1 Drive units.10
5.2 Loudspeaker systems.10
6 Climatic conditions .10
7 Acoustical environment .
...

IEC 62458
®

Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Sound system equipment – Electroacoustical transducers – Measurement of
large signal parameters

Équipements pour systèmes électroacoustiques – Transducteurs
électroacoustiques – Mesurage des paramètres de signaux forts

IEC 62458:2010-01(en-fr)

---------------------- Page: 1 ----------------------
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