Distributed Acoustic Sensing (DAS) leverages fibre-optic cables to transform conventional telecommunication infrastructure into extensive sensor networks capable of recording acoustic and strain ...

A new publication from Opto-Electronic Advances; DOI 10.29026/oea.2022.200078 overviews advances in distributed fiber optic vibration/acoustic sensing technology. Distributed fiber optic ...

(a) Schematic illustration of the HW-TSC. The optical fiber was helically wound around a continuous mandrel to function as an acoustic sensor. (b) Photograph of the HW-TSC and the anechoic tank. One ...

Pipeline contents are typically valuable, volatile, and harmful to the environment if allowed to escape. With them being susceptible to aging, accidental damage, or tampering, the chances of an escape ...

Marine scientists have revealed how they can track whale movement through the oceans using spare fiber optic cables to eavesdrop on them. Individual hydrophones, or underwater microphones, had ...

Automated three-stage analysis pipeline sifts out whale calls from terabytes of distributed acoustic sensing data.

Andreas Fichtner strips a cable of its protective sheath, exposing a glass core thinner than a hair—a fragile, four-kilometer-long fiber that’s about to be fused to another. It’s a fiddly task better ...

In order to understand and predict volcanic events even better, a better understanding of the diverse underground processes involved is required. A new way to detect such processes, even if they are ...

Distributed acoustic sensing (DAS) systems represent cutting-edge technology in infrastructure monitoring, capable of detecting minute vibrations along fiber optic cables spanning tens of kilometers.

With critical infrastructure operators facing challenges in protecting and optimising their assets, while at the same time the costs associated with damage to their vital resources often dwarf initial ...