Optical Time Domain Reflectometry (OTDR) and acoustic sensing technologies harness the intrinsic properties of fibre optics to detect and monitor mechanical disturbances over extensive distances. OTDR ...

(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 ...

In brief: Undersea cables carry 95% of the world's internet traffic, which makes the recent increase in acts of sabotage against them so worrying. NATO and the EU have been exploring methods to detect ...

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.

The Chicago Transit Authority (CTA) has entered into an agreement with Sensonic Inc. to advance a pilot program that would automatically detect intrusions on rail right-of-way. CTA’s Innovation Studio ...

This acoustic sensor was originally developed for an industrial application (monitoring a siren), but will also find many domestic applications. Note that the sensor is designed with safety of ...