Monitoring of physical parameters by fiber-optic recirculation sensor

To use the new frequency-output fiber-optic recirculating sensor for voltage, electric current, dispersion properties of the optical fiber measurements has been proposed. Fiber-optic sensor was constructed as a closed optoelectronic contour formed by a source of radiation, an optical fiber delay line, photoreceiver and regeneration block. The sensitive element of this device was the optical fiber. Identification of measured parameters was carried out with high accuracy by the change of recirculation frequency in the contour. Sensitivity of these sensors was estimated.