Hybrid sensors on fiber-optic Bragg gratings

The article provides an overview of the scientific achievements and offers the new options of the schemes and operating algorithms of analogue and digital hybrid sensors based on fiber Bragg gratings (FBGs), which significantly expand the list of measured values and processes, as well allowing adjustment of the sensitivity, accuracy and dynamic range of the sensor. The key feature of these sensors is the sensor actuator structure (SAS) - additional converter of the measured value to the distorting impact to the FBG. Developed the mathematical model of magnetically sensitive SAS as a reading element, obtained practical recommendations for the manufacturing of digital sensors of linear and angular displacements.