Standard IEC 61757-2-2-ed.1.0 12.5.2016 preview

IEC 61757-2-2-ed.1.0

Fibre optic sensors - Part 2-2: Temperature measurement - Distributed sensing

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STANDARD published on 12.5.2016


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The information about the standard:

Designation standards: IEC 61757-2-2-ed.1.0
Publication date standards: 12.5.2016
SKU: NS-638371
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: International technical standard
Category: Technical standards IEC

The category - similar standards:

Other fibre optic equipment

Annotation of standard text IEC 61757-2-2-ed.1.0 :

IEC 61757-2-2:2016 defines detail specifications for distributed temperature measurement by a fibre optic sensor, also known as fibre optic distributed temperature sensing (DTS). DTS includes the use of Raman scattering, Brillouin scattering and Rayleigh scattering effects. In addition, Raman scattering and Rayleigh scattering based measurements are performed with a single-ended fibre configuration only. Brillouin scattering based measurements are performed with a single-ended fibre or fibre loop configuration. The technique accessible from both sides at same time (e. g. Brillouin optical time domain analysis, BOTDA) is referred to here as a loop configuration. Generic specifications for fibre optic sensors are defined in IEC 61757-1:2012. This part of IEC 61757 specifies the most important DTS performance parameters and defines the procedures for their determination. In addition to the group of performance parameters, a list of additional parameters has been defined to support the definition of the measurement specifications and their associated test procedures. The definitions of these additional parameters are provided for informational purposes and should be included with the sets of performance parameters. A general test setup is defined in which all parameters can be gathered through a set of tests. The specific tests are described within the clause for each measurement parameter. This general test setup is depicted and described in Clause 4 along with a list of general information that should be documented based upon the specific DTS instrument and test setup used to measure these parameters as per IEC 61757-2-2. Annex A provides a blank performance parameter table which should be used to record the performance parameter values for a given DTS instrument and chosen optical test setup configuration. Annex B provides guidelines for optional determination of point defect effects. Keywords: fibre optic distributed temperature sensing (DTS) This publication is to be read in conjunction with IEC 61757-1:2012 IEC 61757-2-2:2016 definit les specifications particulieres de la mesure de temperature repartie par un capteur a fibres optiques, egalement connue sous l’appellation detection de temperature repartie (DTS) a fibres optiques. La DTS utilise les effets des diffusions de Raman, de Brillouin et de Rayleigh. De plus, les mesures basees sur une diffusion de Raman ou de Rayleigh sont uniquement effectuees avec une configuration a fibre unique. Les mesures basees sur une diffusion de Brillouin sont effectuees avec une configuration a fibre unique ou a boucle de fibre. La technique accessible simultanement des deux extremites [par exemple Brillouin optical time domain analysis, BOTDA (analyse a capteurs a fibres optiques repartis utilisant la diffusion Brillouin dans le domaine temporel)] est appelee ici configuration a boucle. Les specifications generiques applicables aux capteurs a fibres optiques sont definies dans l’IEC 61757-1:2012. La presente partie de l’IEC 61757 specifie les parametres de performance les plus importants de la DTS et definit les procedures pour leur determination. En plus du groupe de parametres de performance, une liste de parametres supplementaires a ete definie pour venir a l’appui de la definition des specifications de mesure et de leurs procedures d’essai associees. Les definitions de ces parametres supplementaires sont fournies a titre d’information et il convient de les inclure dans les ensembles de parametres de performance. Un montage d’essai general est defini et permet d’obtenir tous les parametres par un ensemble d’essais. Les essais specifiques sont decrits dans l’article pour chaque parametre de mesure. Ce montage d’essai general est decrit a l’Article 4, ainsi qu’une liste d’informations generales qu’il convient de consigner en fonction de l’instrument DTS specifique et du montage d’essai utilise pour mesurer ces parametres, conformement a l’IEC 61757-2-2. L’Annexe A fournit un tableau de parametres de performance vierge dans lequel il convient de consigner les valeurs des parametres de performance d’un instrument DTS donne et de la configuration choisie pour le montage d’essais optiques. L’Annexe B fournit des lignes directrices pour la determination facultative des effets des defauts ponctuels. Cette Norme internationale doit etre utilisee conjointement avec l’IEC 61757-1:2012. La presente version bilingue (2020-09) correspond a la version anglaise monolingue publiee en 2016-05.

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