IEC 61757-3-2:2022 

Fibre optic sensors - Part 3-2: Acoustic sensing and vibration measurement - Distributed sensing


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IEC 61757-3-2:2022 specifies the terminology, characteristic performance parameters, related test and calculation methods, as well as specific test equipment for interrogation units used in distributed fibre optic acoustic sensing and vibration measurement systems. This document refers to the Rayleigh backscatter and phase detection method by phase-sensitive coherent optical time-domain reflectometry (ϕ-OTDR) only. Quasi-static and low frequency operation modes are not covered by this document. Generic specifications for fibre optic sensors are defined in IEC 61757.

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Relevant for

fibre optics

Additional information

Publication typeInternational Standard
Publication date2022-03-29
Available language(s)English/French
TC/SCTC 86/SC 86C - Fibre optic systems and active devicesrss
ICS33.180.99 - Other fibre optic equipment
Stability date  2026
File size6938 KB

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