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What is fiber optic cable DAS
Rayleigh scattering -based distributed acoustic sensing (DAS) systems use fiber optic cables to provide distributed strain sensing. In DAS, the optical fiber cable becomes the sensing element and measurements are made, and in part processed, using an attached optoelectronic device. The fiber optic cables are connected to an instrument called an interrogator that repeatedly sends pulses of light, like a laser. Distributed Acoustic Sensing (DAS) is a technology that turns a fiber optic cable into an array of individual microphones along its length. These groundbreaking technologies are.