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. This technology is revolutionizing industries from infrastructure monitoring.
In this paper, we conducted a theoretical analysis of key indicators, including frequency response, sensitivity, spatial resolution, sensing distance, multi-point perturbation, and temperature influence. The indicator test scheme was developed, and a test system was constructed. This highly sensitive technology is used for monitoring critical infrastructure such as power cables, pipelines, or railroad tracks.
High-definition strain sensing based on the Rayleigh backscatter delivers a virtually continuous line of strain measurements with sub-millimeter spatial resolution, employing very small lightweight optic.
Today, already with over 500 standard, application optic solutions to leading manufacturers, especially in the semiconductor, the consumer electronics and the car electronics industry, as well as for food p.