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Fiber Bragg grating (FBG) temperature sensors and FBG interrogators in power line monitoring and temperature surveillance

FBG interrogators for power line monitoringElectricity is the backbone of modern civilization; it holds the development of both economy and technology. It is established that it is no longer an option to rely on existing infrastructure as there is a need to constantly evolve and adapt to the growing demand of the populace. The state of current infrastructure is weakened by its age of installation or by the growing demand of the population. The breakdown is imminent as it cannot bear the burden of previous years.

As the demand for energy increases, the need to monitor the efficiency of the assets arises. Despite the increased number of new power assets, it still cannot cater to the demand of the entire nations.

The development of fiber optic sensing technology became prominent for the monitoring of the power line temperature. Fiber optic sensors, including FBG temperature sensors, have proven to be valuable for the industry. It is immune to electromagnetic interference, mechanical vibrations, and electric noise. FBG sensors are more reliable and perform best under harsh conditions.

FBG temperature sensors are introduced into a fiber where they are evenly placed. The light that travels through the fiber will experience a wavelength shift if any strain is applied to the sensors. This, in turn, causes a magnitude change of the reflections that allow for accurate measurements to be performed. FBG that is used inside the sensors is highly sensitive to not only mechanical deformation but also temperature changes. To obtain and process signals emitted by FBG sensors, FBG interrogators are used. These devices can carry out spectrum analysis.

FBG temperature sensors can capture ultra-fast events in real-time, providing useful data for power line integrity monitoring and localization of stress areas. An accumulation of the data on the temperature profile of the power lines can be useful for the improvement of the intensity of the electrical current, the maintenance of power lines, and determine a threshold of the power cables. The data obtained will allow for a surplus of energy to meet modern energy needs while sustaining existing power assets.

Nowadays FBG sensors are used in a variety of different fields that require accurate and fast measurements. Depending on the nature of the application, FBG temperature sensors, FBG strain sensors, FBG pressure sensors, FBG displacement sensors may be utilized. The sensors are often accompanied by FBG interrogators to interpret the signals, and FBG multiplexers to create large monitoring systems with a big number of FBG sensors. The more complex the sensor system, the more intricate data can be obtained.

Optromix offers a wide range of FBG sensors, including FBG temperature sensors, as well as FBG multiplexers, and FBG interrogators. If you would like to purchase fiber Bragg grating sensors, please contact us: info@optromix.com or +1 617 558 9858