Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth
IEC 60793-1-41:2024 describes three methods for determining and measuring the modal bandwidth of multimode optical fibres (see IEC 60793-2-10, IEC 60793-2-30, and the IEC 60793‑2‑40 series). The baseband frequency response is directly measured in the frequency domain by determining the fibre response to a sinusoidaly modulated light source. The baseband response can also be measured by observing…
Fibres optiques - Partie 1-41: Méthodes de mesure et procédures d'essai - Largeur de bande
L'IEC 60793-1-31:2024 décrit trois méthodes pour déterminer et mesurer la largeur de bande modale des fibres optiques multimodales (voir l’IEC 60793-2-10, l’IEC 60793-2-30 et l’IEC 60793‑2‑40). La réponse en fréquence de bande de base est directement mesurée dans le domaine fréquentiel en déterminant la réponse de la fibre à une source de lumière modulée de manière sinusoïdale. La réponse en…
Caractérisation de la texture d'un revêtement de chaussée à partir de relevés de profils de la ...
Le présent document décrit les méthodes disponibles pour effectuer une analyse spectrale d’un profil de surface de chaussée. Il définit une méthode permettant d’analyser la fréquence spatiale (ou la longueur d’onde de texture) de profils de surface bidimensionnels qui décrivent l’amplitude de texture d’un revêtement de chaussée en fonction de la distance le long d’une trajectoire rectiligne ou…
Characterization of pavement texture by use of surface profiles — Part 4: One third octave band spec...
This document describes the methods that are available to perform a spectral analysis of a pavement surface profile. It specifies a method for performing spatial frequency analysis (or texture wavelength analysis) of two-dimensional surface profiles that describe the pavement texture amplitude as a function of the distance along a straight or curved trajectory over the pavement. It also details…
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures -...
IEC 61300-1:2022+AMD1:2024 CSV provides general information and guidance for the basic test and measurement procedures defined in IEC 61300-2 (all parts) and IEC 61300-3 (all parts) for interconnecting devices, passive components, mechanical splices, fusion splice protectors, fibre management systems and protective housings. This document is used in combination with the relevant specification…
This document defines data structures and basic operations on property graphs. It provides capabilities for creating, accessing, querying, maintaining, and controlling property graphs and the data they comprise.
This document specifies the syntax and semantics of a data management language for specifying and modifying the structure of property graphs and collections thereof.
This document…
This document defines data structures and basic operations on property graphs. It provides capabilities for creating, accessing, querying, maintaining, and controlling property graphs and the data they comprise.
This document specifies the syntax and semantics of a data management language for specifying and modifying the structure of property graphs and collections thereof.
This document…
Guideline for the system design of HVDC converter stations with line-commutated converters
IEC TR 63127:2019+AMD1:2024 CSV focuses on the system design of converter stations. It is applicable to point-to-point and back-to-back HVDC systems based on line-commutated converter (LCC) technology. This document provides guidance and supporting information on the procedure for system design and the technical issues involved in the system design of HVDC transmission projects for both…
