1、NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 1043 Premire dition First edition 1993-1 2 Electroacoustique - Instruments pour la mesure de lintensit acoustique - Mesure au moyen dune paire de microphones de pression Electroacoustics - Instruments for the measurement of sound intensity - Measur
2、ement with pairs of pressure sensing microphones Numro de rfrence Reference number CEMEC 1043: 1993 Numros des publications Depuis le ler janvier 1997, les publications de la CE1 sont numrotes partir de 60000. Publications consolides Les versions consolides de certaines publications de la CE1 incorp
3、orant les amendements sont disponibles. Par exemple, les numros ddition 1.0, 1.1 et 1.2 indiquent respectivement la publication de base, la publication de base incorporant lamendement 1, et la publication de base incorporant les amendements 1 et 2. Validit de la presente publication Le contenu techn
4、ique des publications de la CE1 est constamment revu par la CE1 afin quil reflte ltat actuel de la technique. Des renseignements relatifs la date de reconfirmation de la publication sont disponibles dans le Catalogue de la CEI. Les renseignements relatifs des questions ltude et des travaux en cours
5、entrepris par le comit technique qui a tabli cette publication, ainsi que la liste des publications tablies, se trouvent dans les documents ci- dessous: Site web,) de la CEI* Catalogue des publications de la CE1 Publi annuellement et mis jour rgulirement (Catalogue en ligne)* Disponible la fois au 4
6、te web de la CEI et comme priodique imprim Bulletin de la CE1 Terminologie, symboles graphiques et littraux En ce qui concerne la terminologie gnrale, le lecteur se reportera la CE1 60050: Vocabulaire Electro- technique International (VEI). Pour les symboles graphiques, les symboles littraux et les
7、signes dusage gnral approuvs par la CEI, le lecteur consultera la CE1 60027: Symboles littraux utiliser en lectrotechnique, la CE1 6041 7: Symboles graphiques utilisables sur le matriel. Index, relev et compilation des feuilles individuelles, et la CE1 60617: Symboles graphiques pour schmas. + Voir
8、adresse site web, sur la page de titre. Numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. Consolidated publications Consolidated versions o some IEC publications including amendments are available. For example, edition numbers 1.0, 1.1 and 1.2 r
9、efer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Validity of this publication The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content refle
10、cts current technology. Information relating to the date of the reconfirmation of the publication is available in the IEC catalogue. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of
11、publications issued, is to be found at the following IEC sources: IEC web site* Catalogue of IEC publications Published yearly with regular updates (On-line catalogue)* Available both at the IEC web site* and as a printed periodical IEC Bulletin Terminology, graphical and letter symbols For general
12、terminology, readers are referred to IEC 60050: International Electrotechnical Vocabulary (IEV). For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to publications IEC 60027: Letter symbols to be used in electrical technology, IEC 6041 7: Gr
13、aphical symbols for use on equipment. Index, survey and compilation of the single sheets and IEC 60617: Graphical symbols for diagrams. * See web site address on title page. NORME INTERNATIONALE INTERNATIONAL STANDARD CE1 IEC 1043 Premire dition First edition 1993-1 2 Electroacoustique - Instruments
14、 pour la mesure de lintensit acoustique - Mesure au moyen dune paire de microphones de pression Electroacoustics - Instruments for the measurement of sound intensity - Measurement with pairs of pressure sensing microphones 0 CE1 1993 Droits de reproduction rservs - Copyright - all rights reserved Au
15、cune partie de tte publicatm ne peut 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. The IEC collaborates closely with
16、the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters, prepared by technical committees on which all the National Committees having a special
17、interest therein are represented, express, as nearly as possible, an international consensus of opinion on the subjects dealt with. 3) They have the form of recommendations for international use published in the form of standards, technical reports or guides and they are accepted by the National Com
18、mittees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding nationa
19、l or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. International Standard IEC 1043 has been prepared by IEC tec
20、hnical committee 29: Electroacoustics. This standard completes the series of International Standards already prepared or in preparation by subcommittee 1 of IS0 committee 43: Acousticsinoise, ISO/TC 43/SC1. The text of this standard is based on the following documents: I 29(C0)185 I 29(C0)211 1 Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. Annex A forms an integral part of this standard. Annexes B, C, D and E are for information only.
