Summary form only given. For an open-loop interferometric fiber-optic gyroscope, its dynamic range is severely limited within the rate equivalent of Π phase shift. This constraint arises from using fixed-fiber length, loop diameter, and wavelength of the circulating light. In this project, a technique has been developed to overcome the dynamic range limitation without the use of electronics feedback and control. An open-loop interferometric fiber-optic gyro was converted into a re-entrant version with tunable sensitivity. The operation principle is based on using a short sensing coil to cater for high rotation rate measurements, while the sensitivity booster is made operable to increase the gyroscope sensitivity for enhanced detection for low rotation rate measurements.
An erbium-fiber-based sensitivity booster used by a fiber-optic gyroscope
1998-01-01
150791 byte
Conference paper
Electronic Resource
English
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