Specilalty cable solutions
In almost any industry where an extended object needs to be monitored, a fiber optic cable can be used as a sensor.
Distributed fiber optic sensing systems are at the core of smart cities, allowing to monitor the flows of public transport and traffic events. They are also actively used to preserve architectural heritage, to monitor the structural health of bridges and tunnels.
Distributed monitoring in oil and gas industry is used at the stages of well exploration, operation and conservation, as well as during transportation and processing of raw materials or finished products.
Disctibuted sensing types
DAS (Distributed Acoustic Sensing) — are "virtual" microphones along the optical fiber. The fiber literally "hears" events occuring in the environment. The number of these microphones is the combination of the spatial resolution, distance and pulse duration. State-of-the-art systems can operate over distances of up to 80 km. Combining several devices into a single network makes it possible to create thousands of kilometers of monitoring line.
DTS (Distributed Temperature Sensing) — are "virtual" thermometers along the optical fiber. The distance range for conventional single-mode fiber is up to 100 km with a spatial resolution of 1 to 5 meters and an accuracy of less than 1 °C, with a measurement time of 2 to 30 minutes.
DSS (Distributed Strain Sensing) — are "virtual" strain sensors along the optical fiber. Standard single-mode fiber and Brillouin scattering are used. As the voltage in the fiber changes, a shift in the Brillouin frequency occurs, which can be detected. Thus a spatial resolution of about 1 meter at distances up to 65 km is achieved and a voltage of less than 0.001% is recorded.