Scales and sizes for plotting frequency characteristics and polar diagrams

IEC 60263:2020 specifies standard aspect ratios for logarithmic or level characteristics expressed in decibels versus a logarithmic frequency axis and ranges for the radius of polar diagrams of level. Applications include hard copy printouts, electronic files (e.g., PDF files), scientific publications, screen displays in computer programs and apps, as well as graphs in standards. Informative examples of graphs that conform to the requirements in this document are found in Annex A. Although outside the scope of this document, graphs with a linear y-axis versus logarithmic frequency (e.g., phase, group delay, etc.) often accompany the standard aspect ratio graphs of level described in the normative part of this document. These are described in informative Annex B. IEC 60263:2020 cancels and replaces the third edition published in 1982. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the scope is expanded to include electronic files (e.g., PDF), scientific publications, graphs in other standards, and screen displays in programs and apps; b) a Terms and Definitions clause has been added; c) aspect ratios of 20 dB/decade, and 0,5, 1, 1,25, and 2,5 decades/decade have been added; d) ranges of 60 dB or 30 dB are specified for polar plots of absolute level; a 30 dB range is specified for polar plots of relative level; e) as most graphs are now computer generated, tolerances and sizes have been removed; f) all informative figures have been updated with contemporary examples; g) an informative annex with information about linear y-axis vs. logarithmic frequency has been added.

Skalen und Größenverhältnisse zur Darstellung von Frequenzkurven und Polardiagrammen

Échelles et dimensions des graphiques pour le tracé des courbes de réponse en fréquence et des diagrammes polaires

L'IEC 60263:2020 spécifie les formats normalisés des caractéristiques logarithmiques ou de niveau exprimées en décibels en fonction d'un axe de fréquence logarithmique et des domaines de variation du rayon des diagrammes polaires de niveau. Les applications incluent les copies papier, les fichiers électroniques (fichiers PDF, par exemple), les publications scientifiques, les affichages à l'écran des programmes et applications, ainsi que les graphiques dans les normes. Des exemples de graphiques conformes aux exigences du présent document sont donnés à l'Annexe A. Bien qu'ils n’entrent pas dans le domaine d'application du présent document, les tracés avec un axe y linéaire en fonction d'une fréquence logarithmique (par exemple phase, temps de propagation de groupe, etc.) accompagnent souvent les graphiques de format normalisé du niveau décrit dans la partie normative du présent document. Ces tracés sont décrits à l'Annexe B (informative). L'IEC 60263:2020 annule et remplace la troisième édition parue en 1982. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) le domaine d'application a été élargi pour intégrer des fichiers électroniques (PDF, par exemple), des publications scientifiques, des graphiques d'autres normes et des affichages à l'écran des programmes et applications; b) un article Termes et définitions a été ajouté; c) les formats 20 dB/décade, et 0,5, 1, 1,25 et 2,5 décades/décade ont été ajoutés; d) des plages de 60 dB ou 30 dB ont été spécifiées pour les diagrammes polaires de niveau absolu; une plage de 30 dB a été spécifiée pour les diagrammes polaires de niveau relatif; e) la plupart des graphiques étant aujourd'hui générés par ordinateur, les tolérances et dimensions ont été supprimées; f) toutes les figures informatives ont été mises à jour avec des exemples contemporains; g) une annexe informative contenant des informations relatives à l'axe y linéaire en fonction de la fréquence logarithmique a été ajoutée.

Merila in velikosti za risanje frekvenčnih karakteristik in polarnih diagramov (IEC 60263:2020)

General Information

Status
Published
Technical Committee
Drafting Committee
Current Stage
6060 - Document made available
Due Date
28-Aug-2020
Completion Date
28-Aug-2020

Buy Standard

Standard
EN IEC 60263:2020 - BARVE na PDF-str 13,14,15,16,17
English language
16 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN IEC 60263:2020
01-november-2020

Merila in velikosti za risanje frekvenčnih karakteristik in polarnih diagramov (IEC

60263:2020)
Scales and sizes for plotting frequency characteristics and polar diagrams (IEC
60263:2020)
Skalen und Größenverhältnisse zur Darstellung von Frequenzkurven und
Polardiagrammen (IEC 60263:2020)
Echelles et dimensions des graphiques pour le tracé des courbes de réponse en
fréquence et des diagrammes polaires (IEC 60263:2020)
Ta slovenski standard je istoveten z: EN IEC 60263:2020
ICS:
01.100.25 Risbe s področja Electrical and electronics
elektrotehnike in elektronike engineering drawings
17.140.50 Elektroakustika Electroacoustics
SIST EN IEC 60263:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 60263:2020
---------------------- Page: 2 ----------------------
SIST EN IEC 60263:2020
EUROPEAN STANDARD EN IEC 60263
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 17.140.50
English Version
Scales and sizes for plotting frequency characteristics and polar
diagrams
(IEC 60263:2020)

Échelles et dimensions des graphiques pour le tracé des Skalen und Größenverhältnisse zur Darstellung von

courbes de réponse en fréquence et des diagrammes Frequenzkurven und Polardiagrammen

polaires (IEC 60263:2020)
(IEC 60263:2020)

This European Standard was approved by CENELEC on 2020-07-31. 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 concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre 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 as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60263:2020 E
---------------------- Page: 3 ----------------------
SIST EN IEC 60263:2020
EN IEC 60263:2020 (E)
European foreword

The text of document 29/1038/CDV, future edition 4 of IEC 60263, prepared by IEC/TC 29

"Electroacoustics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN IEC 60263:2020.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2021-05-01

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-07-31

document have to be withdrawn

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 60263:2020 was approved by CENELEC as a European

Standard without any modification.
---------------------- Page: 4 ----------------------
SIST EN IEC 60263:2020
IEC 60263
Edition 4.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Scales and sizes for plotting frequency characteristics and polar diagrams
Échelles et dimensions des graphiques pour le tracé des courbes de réponse
en fréquence et des diagrammes polaires
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.50 ISBN 978-2-8322-8497-1

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 5 ----------------------
SIST EN IEC 60263:2020
– 2 – IEC 60263:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Characteristics plotted versus a logarithmic frequency scale ........................................... 6

4.1 Decibel vs. log frequency plots ............................................................................... 6

4.2 Log quantities vs. log frequency plots ..................................................................... 7

5 Polar level diagrams ........................................................................................................ 7

5.1 General ................................................................................................................... 7

5.2 Polar plots of absolute level .................................................................................... 7

5.3 Polar plots of relative level ...................................................................................... 7

Annex A (informative) Examples of the requirements specified in this document .................... 8

Annex B (informative) Information regarding linear y-axis vs. logarithmic frequency

plots ..................................................................................................................................... 14

B.1 General ................................................................................................................. 14

B.2 Phase ................................................................................................................... 14

B.3 Group delay .......................................................................................................... 14

Figure A.1 – Example of a microphone calibration curve showing the relative response

in dB as a function of frequency with an aspect ratio of 10 dB/decade .................................... 8

Figure A.2 – Example of the response of a loudspeaker crossover filter network with

an aspect ratio of 20 dB/decade .............................................................................................. 9

Figure A.3 – Example of the response of a loudspeaker with an aspect ratio of

25 dB/decade (dB re. 20 µPa) ................................................................................................. 9

Figure A.4 – Example of the response of a hearing aid with an aspect ratio of

50 dB/decade........................................................................................................................ 10

Figure A.5 – Example of the noise from a mobile communications device with an

aspect ratio of 0,5 decades/decade (10 dB/decade) .............................................................. 10

Figure A.6 – Example of amplifier noise with an aspect ratio of 1 decade/decade

(20 dB/decade) ..................................................................................................................... 11

Figure A.7 – Example of total harmonic distortion of an earphone with an aspect ratio

of 1,25 decades/decade (25 dB/decade) ............................................................................... 11

Figure A.8 – Example of total harmonic distortion of a loudspeaker with an aspect

ratio of 2,5 decades/decade (50 dB/decade) ......................................................................... 12

Figure A.9 – Example of a polar diagram of absolute level with a range of 60 dB,

showing the sound pressure level from a siren at a distance of 3 m ...................................... 12

Figure A.10 – Example of a polar diagram of relative level with a range of 30 dB and a

reference circle radius of 25 dB, showing the directional response of a highly

directional shotgun microphone at 2,5 kHz ............................................................................ 13

---------------------- Page: 6 ----------------------
SIST EN IEC 60263:2020
IEC 60263:2020 © IEC 2020 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SCALES AND SIZES FOR PLOTTING FREQUENCY
CHARACTERISTICS AND POLAR DIAGRAMS
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 subjects since each technical committee has representation 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 cannot 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 publications. 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, access 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 individual 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 upon, 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 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 60263 has been prepared by IEC technical committee TC 29:

Electroacoustics.

This fourth edition cancels and replaces the third edition published in 1982. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) the scope is expanded to include electronic files (e.g., PDF), scientific publications, graphs

in other standards, and screen displays in programs and apps;
b) a Terms and Definitions clause has been added;

c) aspect ratios of 20 dB/decade, and 0,5, 1, 1,25, and 2,5 decades/decade have been added;

d) ranges of 60 dB or 30 dB are specified for polar plots of absolute level; a 30 dB range is

specified for polar plots of relative level;

e) as most graphs are now computer generated, tolerances and sizes have been removed;

f) all informative figures have been updated with contemporary examples;
-------------
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.