EN 60118-0:1993
(Main)Hearing aids - Part 0: Measurement of electroacoustical characteristics
Hearing aids - Part 0: Measurement of electroacoustical characteristics
Defines the measurement of physical performance characteristics of air-conduction hearing aids based on a free-field technique and measured with an ear simulator. Describes methods of measurement for evaluation of the electroacoustical characteristics of hearing aids.
Hörgeräte - Teil 0: Messung der elektroakustischen Eigenschaften
Appareils de correction auditive - Partie 0: Méthodes de mesure des caractéristiques électroacoustiques
Décrit la mesure des caractéristiques physiques des appareils de correction auditive à conduction aérienne, fondée sur une technique de champ acoustique libre et utilisant un simulateur d'oreille. Décrit des méthodes de mesure pour l'évaluation des caractéristiques électroacoustiques des appareils de correction auditive.
Hearing aids - Part 0: Measurement of electroacoustical characteristics (IEC 60118-0:1983)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60118-0:2002
01-september-2002
Hearing aids - Part 0: Measurement of electroacoustical characteristics (IEC 60118-
0:1983)
Hearing aids -- Part 0: Measurement of electroacoustical characteristics
Hörgeräte -- Teil 0: Messung der elektroakustischen Eigenschaften
Appareils de correction auditive -- Partie 0: Méthodes de mesure des caractéristiques
électroacoustiques
Ta slovenski standard je istoveten z: EN 60118-0:1993
ICS:
11.180.15 3ULSRPRþNL]DJOXKHRVHEHLQ Aids for deaf and hearing
RVHEH]RNYDURVOXKD impaired people
17.140.50 Elektroakustika Electroacoustics
SIST EN 60118-0:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 60118-0:2002
---------------------- Page: 2 ----------------------
SIST EN 60118-0:2002
---------------------- Page: 3 ----------------------
SIST EN 60118-0:2002
---------------------- Page: 4 ----------------------
SIST EN 60118-0:2002
---------------------- Page: 5 ----------------------
SIST EN 60118-0:2002
---------------------- Page: 6 ----------------------
SIST EN 60118-0:2002
NORME CEI
INTERNATIONALE IEC
118-0
INTERNATIONAL
Deuxième édition
STAN DARD
Second edition
1983
de correction auditive
Appareils
Partie zéro:
Méthodes de mesure des caractéristiques
électroacoustiques
Hearing aids
Part 0:
Measurement of electroacoustical
characteristics
de reproduction Copyright - all rights reserved
© CEI 1983 Droits réservés —
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission
les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, Suisse
Commission Electrotechnique Internationale CODE PRIX
International Electrotechnical Commission PRICE CODE
MerkgyHapoaHaa 3neKrporexHHVecnaa HOMHCCHR
IEC
• Pour prix, voir catalogue en vigueur
•
For price, see current catalogue
---------------------- Page: 7 ----------------------
SIST EN 60118-0:2002
118-0 © IEC 1983 - 3 -
CONTENTS
Page
FOREWORD 7
PREFACE 7
Clause
11
1. Scope
2. Object 11
3. General conditions 13
4. Explanation of terms 13
4.1 Ear simulator 13
4.2 Substitution method 13
13
4.3 Comparison method
4.4 Pressure method 13
4.5 Simulated in situ method 13
4.6 13 Reference orientation (of a hearing aid)
15
4.7 Reference point (of a hearing aid)
4.8 Test point 15
4.9 Supply voltage 15
4.10 Acoustic gain 15
15
4.11 Full-on acoustic gain (frequency response curve)
15
4.12 Maximum acoustic gain at a specified frequency
4.13 Saturation sound pressure level (frequency response curve) 15
15
4.14 Maximum saturation sound pressure level
4.15 Output sound pressure level for an input sound pressure level of 90 dB (OSPL 90) at a specified frequency (or
frequencies) 15
15
4.16 Reference test frequency
4.17 Reference test gain control position 17
17
4.18 Reference test gain
17
4.19 Frequency response
4.20 Comprehensive frequency response curves 17
17
4.21 Basic frequency response curve
17
4.22 Steady state input-output graph
5. Test equipment 17
17
5.1 Acoustical requirements for the test enclosure
19
5.2 Sound field at the test point
5.3 Ear simulator 19
5.4 Equipment for the measurement of sound pressure level in the ear simulator 19
21
5.5 Equipment for automatic sweep frequency recording
5.6 Calibration of free-field sound pressure level 21
21
6. Test conditions
21
6.1 Choice of test point
6.2 Calibrating the sound field 23
23
6.3 Locating the hearing aid for tests
6.4 Normal operating conditions for the hearing aid 25
7. Measurements 27
27
7.1 Maximum saturation sound pressure level
7.2 Output sound pressure level frequency response for an input SPL of 90 dB 27
29
7.3 Full-on acoustic gain frequency response
29
7.4 Comprehensive frequency responses and basic frequency response
7.5 Effect of tone control position on the basic frequency response 31
7.6 Effect of gain control position on frequency response 31 .
7.7 Characteristics of the gain control 33
7.8 Effect on the full-on acoustic gain of va riation of battery or supply voltage 33
7.9 riation of internal resistance of battery or supply 33
Effect on the full-on acoustic gain of va
7.10 Effect on OSPL 90 of variation of battery or supply voltage 35
7.11 Battery current 35
7.12 Measurement of amplitude non-linearities in hearing aids 35
---------------------- Page: 8 ----------------------
SIST EN 60118-0:2002
118-0 © I E C 1983 - 5 -
Page
Clause
41
7.13 Effect o
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.