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The paper presents the idea as well as the results of a fiber-optic Sagnac interferometer application for recognition of rotational seismic events. The presented devices based on well-known optical gyroscope configuration is optimized for detection of other special physical quantities. Generally it is a rotational seismometer designed for calibration of the other electromechanical types of such devices, as well as a new sensor for detection of rotational seismic events. The detection of absolute rotation by the system is advantageous in comparison to the other rotational seismometers, which calculate rotational events in indirect ways.
Microwaves, Radar and Wireless Communications, 2004. MIKON-2004. 15th International Conference on (Volume:3 )
Date of Conference: 17-19 May 2004