High sensitivity and large measurable range distributed acoustic sensing with Rayleigh-enhanced fiber.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.422046
Abstract: In this Letter, high sensitivity and large measurable range distributed acoustic sensing (DAS) based on sub-chirped-pulse extraction algorithm (SPEA) in time domain and dechirp operation is proposed; moreover, Rayleigh-enhanced fiber is used to further improve… read more here.
Keywords: large measurable; range; measurable range; sensitivity ... See more keywords
Improvement of the strain measurable range of an OFDR based on local similar characteristics of a Rayleigh scattering spectrum.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.003293
Abstract: The decrease of overlap between the reference spectrum and measurement spectrum (ReS and MeS) is found to limit the strain measurable range of the optical frequency domain reflectometer (OFDR) and signal-to-noise ratio (SNR) of cross-correlation… read more here.
Keywords: local similar; strain measurable; spectrum; measurable range ... See more keywords