Fibre optic sensors - Part 3-2: Acoustic sensing and vibration measurement - Distributed sensing (IEC 61757-3-2:2022)
This part of IEC 61757 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.
ΚΩΔΙΚΟΣ ΠΡΟΪΟΝΤΟΣ:
CYS EN IEC 61757-3-2:2022
This part of IEC 61757 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.