Russian scientists have developed a device that allows for highly accurate measurement of alternating electric field voltage. The development can be used to control power grid parameters and prevent accidents.
The project was implemented by specialists from Kazan National Research Technical University named after A. N. Tupolev – KAI. The device is based on a fiber-optic sensor operating on the basis of a so-called Bragg grating – a structure inside an optical fiber that reflects light of a certain wavelength.
The principle of operation is that under the influence of an electric field, the optical characteristics of this grating change. This causes a shift in the wavelength of the reflected signal, by which the voltage level is determined.
According to the developers, the device provides high measurement accuracy and maintains stable readings even with significant temperature fluctuations.
Such sensors can increase the reliability and safety of energy infrastructure: they can be used to monitor the network status, assess power quality, and prevent emergency situations.
A patent has already been obtained for the development from the Federal Service for Intellectual Property.
