EN IEC 61757-1-2:2023
(Main)Fibre optic sensors - Part 1-2: Strain measurement - Distributed sensing based on Brillouin scattering
Fibre optic sensors - Part 1-2: Strain measurement - Distributed sensing based on Brillouin scattering
IEC 61757-1-2: 2023 defines detailed specifications for distributed strain measurements with a fibre optic sensor, also known as "fibre optic distributed strain sensing". It is applicable to distributed strain sensing systems (DSS) based on spontaneous or stimulated Brillouin scattering in the optical fibre sensor (strain sensitive element), that is, to sensors capable of measuring absolute strain. This document specifies the most important DSS performance parameters and defines the procedures for their determination.
Lichtwellenleiter-Sensoren - Teil 1-2: Dehnungsmessung - Verteilte Sensorik auf der Basis von Brillouin-Streuung
Capteurs fibroniques - Partie 1-2: Mesure de déformation - Détection répartie basée sur la diffusion de Brillouin
IEC 61757-1-2: 2023 définit des spécifications particulières pour les mesures de déformation réparties avec un capteur fibronique, également appelées "détection de déformation répartie fibronique". Elle s’applique aux systèmes fibroniques répartis de détection de déformation (DSS) basés sur la diffusion de Brillouin spontanée ou stimulée dans le capteur à fibres optiques (élément sensible à la déformation), c’est-à-dire aux capteurs capables de mesurer la déformation absolue. Le présent document spécifie les paramètres de performance DSS les plus importants et définit les procédures pour leur détermination.
Optični senzorji - 1-2. del: Merjenje deformacij - Porazdeljeno zaznavanje na podlagi Brillouinovega sipanja (IEC 61757-1-2:2023)
Standard IEC 61757-1-2: 2023 določa podrobne specifikacije za porazdeljeno merjenje deformacij z optičnim senzorjem, znanim tudi kot optično porazdeljeno zaznavanje deformacij (DTS). Uporablja se za sisteme za porazdeljeno zaznavanje deformacij (DSS) na podlagi spontanega ali stimuliranega Brillouinovega sipanja v optičnem senzorju (element, občutljiv na deformacije), tj. senzorjih, ki so sposobni meriti absolutno deformacijo. Ta dokument določa najpomembnejše parametre delovanja sistema za porazdeljeno zaznavanje deformacij in opredeljuje postopke za njihovo določevanje.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2024
Optični senzorji - 1-2. del: Merjenje deformacij - Porazdeljeno zaznavanje na
podlagi Brillouinovega sipanja (IEC 61757-1-2:2023)
Fibre optic sensors - Part 1-2: Strain measurement - Distributed sensing based on
Brillouin scattering (IEC 61757-1-2:2023)
Lichtwellenleiter-Sensoren - Teil 1-2: Dehnungsmessung - Verteilte Sensorik auf der
Basis von Brillouin-Streuung (IEC 61757-1-2:2023)
Capteurs fibroniques - Partie 1-2: Mesure de déformation - Détection répartie basée sur
la diffusion de Brillouin (IEC 61757-1-2:2023)
Ta slovenski standard je istoveten z: EN IEC 61757-1-2:2023
ICS:
33.180.99 Druga oprema za optična Other fibre optic equipment
vlakna
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61757-1-2
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2023
ICS 33.180.99
English Version
Fibre optic sensors - Part 1-2: Strain measurement - Distributed
sensing based on Brillouin scattering
(IEC 61757-1-2:2023)
Capteurs fibroniques - Partie 1-2: Mesure de déformation - Lichtwellenleiter-Sensoren - Teil 1-2: Dehnungsmessung -
Détection répartie basée sur la diffusion de Brillouin Verteilte Sensorik auf der Basis von Brillouin-Streuung
(IEC 61757-1-2:2023) (IEC 61757-1-2:2023)
This European Standard was approved by CENELEC on 2023-09-20. 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
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Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61757-1-2:2023 E
European foreword
The text of document 86C/1857/CDV, future edition 1 of IEC 61757-1-2, prepared by SC 86C "Fibre
optic systems and active devices" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 61757-1-2:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-06-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-09-20
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61757-1-2:2023 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61757 2018 Fibre optic sensors - Generic specification EN IEC 61757 2018
IEC 61757-2-2 2016 Fibre optic sensors - Part 2-2: Temperature EN 61757-2-2 2017
measurement - Distributed sensing
IEC 61757-3-2 2022 Fibre optic sensors - Part 3-2: Acoustic EN IEC 61757-3-2 2022
sensing and vibration measurement -
Distributed sensing
ISO/IEC Guide 98-3 - Uncertainty of measurement - Part 3: - -
Guide to the expression of uncertainty in
measurement (GUM:1995)
IEC 61757-1-2 ®
Edition 1.0 2023-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Fibre optic sensors –
Part 1-2: Strain measurement – Distributed sensing based on Brillouin scattering
Capteurs fibroniques –
Partie 1-2: Mesure de déformation – Détection répartie basée sur la diffusion de
Brillouin
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.99 ISBN 978-2-8322-7396-8
– 2 – IEC 61757-1-2:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, abbreviated terms and symbols . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 10
3.3 Symbols . 11
4 General test setups for measurement of performance parameters . 11
4.1 General and test setup requirements . 11
4.2 General documentation requirements . 16
5 Measurement procedures for performance parameters . 16
5.1 Strain measurement error . 16
5.1.1 Test procedure and conditions . 16
5.1.2 Parameter calculation and reporting . 17
5.2 Spatial resolution . 17
5.2.1 Test procedure and conditions . 17
5.2.2 Parameter calculation and reporting . 18
5.3 Strain repeatability . 18
5.3.1 Test procedure and conditions . 18
5.3.2 Parameter calculation and reporting . 18
5.4 Spatial strain uncertainty . 19
5.4.1 Test procedure and conditions . 19
5.4.2 Parameter calculation and reporting . 19
5.5 Warm-up time . 20
5.5.1 Test procedure and conditions . 20
5.5.2 Parameter calculation and reporting . 20
5.6 System performance with altered attenuation . 20
5.6.1 General . 20
5.6.2 At distance measurement range . 21
5.6.3 At short distance with high loss. 22
Bibliography . 24
Figure 1 – Optical fibre strain profile and related strain sample points. 8
Figure 2 – General test setup for single-ended configuration . 12
Figure 3 – General test setup for loop configuration . 13
Figure 4 – Measured versus applied strain (typical curve) . 15
Figure 5 – Brillouin frequency shift as a function of elongation of a standard
telecommunication fibre . 15
Figure 6 – Performance evaluation at distance measurement range . 21
Figure 7 – Performance evaluation at short distance with high loss . 22
IEC 61757-1-2:2023 © IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIBRE OPTIC SENSORS –
Part 1-2: Strain measurement –
Distributed sensing based on Brillouin scattering
FOREWORD
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