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IEC 60263-ed.4.0
Scales and sizes for plotting frequency characteristics and polar diagrams
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STANDARD published on 26.6.2020
The information about the standard:
Designation standards: IEC 60263-ed.4.0
Publication date standards: 26.6.2020
SKU: NS-996897
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 60263-ed.4.0 :
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. LIEC 60263:2020 specifie les formats normalises des caracteristiques logarithmiques ou de niveau exprimees en decibels en fonction dun axe de frequence logarithmique et des domaines de variation du rayon des diagrammes polaires de niveau. Les applications incluent les copies papier, les fichiers electroniques (fichiers PDF, par exemple), les publications scientifiques, les affichages a lecran des programmes et applications, ainsi que les graphiques dans les normes. Des exemples de graphiques conformes aux exigences du present document sont donnes a lAnnexe A. Bien quils n’entrent pas dans le domaine dapplication du present document, les traces avec un axe y lineaire en fonction dune frequence logarithmique (par exemple phase, temps de propagation de groupe, etc.) accompagnent souvent les graphiques de format normalise du niveau decrit dans la partie normative du present document. Ces traces sont decrits a lAnnexe B (informative). LIEC 60263:2020 annule et remplace la troisieme edition parue en 1982. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) le domaine dapplication a ete elargi pour integrer des fichiers electroniques (PDF, par exemple), des publications scientifiques, des graphiques dautres normes et des affichages a lecran des programmes et applications; b) un article Termes et definitions a ete ajoute; c) les formats 20 dB/decade, et 0,5, 1, 1,25 et 2,5 decades/decade ont ete ajoutes; d) des plages de 60 dB ou 30 dB ont ete specifiees pour les diagrammes polaires de niveau absolu; une plage de 30 dB a ete specifiee pour les diagrammes polaires de niveau relatif; e) la plupart des graphiques etant aujourdhui generes par ordinateur, les tolerances et dimensions ont ete supprimees; f) toutes les figures informatives ont ete mises a jour avec des exemples contemporains; g) une annexe informative contenant des informations relatives a laxe y lineaire en fonction de la frequence logarithmique a ete ajoutee.
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