A novel approach based on harmonic analysis in angular velocity measurement with open-loop fiberoptic gyroscopes

Fiber optic gyroscopes are optoelectronic technology products that are sensitive to angular velocity. In this study, a cost-effective open loop optical fiber gyroscope configuration is proposed. which can accurately measure the angular velocity of rotating objects. By performing a harmonic analysis of the signal at the gyroscope output. a novel angular velocity model that correlate the angular velocity of rotation with high accuracy is presented. Using this model in an open-loop fiber gyroscope, it has been shown that angular velocity can be measured at a wider measuring range with higher measurement sensitivity. Analysis and testing of the presented model is simulated in Matlab software. Furthermore, the proposed fiber gyroscope system has been successfully installed to obtain real-time measurements and, its sensitivity to angular velocity has been experimentally tested over a wide measurement range. Both the graphs generated from the simulation studies and the experimentally obtained data clearly demonstrate the gyroscopic properties overlapping each other. On the other hand, all results clearly show that the proposed model increases the dynamic range of the gyroscope and its sensitivity to angular velocity.