Abstract
<jats:p>The study addresses key issues in the development of fiber-optic gyroscopes with an extended angular velocity measurement range for a Small-Sized Inertial Measuring Unit intended for a wide class of highly maneuverable objects. The study focuses on the output characteristics of fiber-optic gyroscopes with an angular velocity range exceeding 300°/s, as well as on zero-bias error between successive power-on cycles and zero-bias error under varying temperature conditions, with a view to their integration into a Small-Sized Inertial Measuring Unit. The results of experimental investigations into the output characteristics of fiber-optic gyroscopes (FOG) are presented, including their performance over the angular velocity range, across temperature variations, and under repeated power-on conditions for a Small-Sized Inertial Measuring Unit (IMU). The research methodology is based on the design of an open-loop fiber-optic gyroscope employing direct conversion, with its operating principle derived from the Sagnac effect. In addition, the feasibility of using fiber-optic gyroscopes operating at optical wavelengths of 1.3 μm and 1.75 μm with an extended angular velocity range has been examined. The findings confirm the suitability of such gyroscopes for incorporation into a Small-Sized Inertial Measuring Unit.</jats:p>