Possibility of fiber optic rotational seismometer design

Leszek R. Jaroszewicz; Z. Krajewski

doi:10.1117/12.484590

29 July 2002 Possibility of fiber optic rotational seismometer design

Leszek R. Jaroszewicz, Z. Krajewski

Proceedings Volume 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life; (2002) https://doi.org/10.1117/12.484590
Event: Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, 2002, Novosibirsk, Russian Federation

Abstract

A new area of fiber-optic Sagnac interferometer application is presented and discussed. The fiber-optic sensor described in the paper, in well-known classic fiber-optic gyro configuration, has been designed for a detection of the rotational seismic events. The basic system optimisation for a detection rotation only without conversion for angular changes distinguishes this system from the gyro application. On the other side, the detection of absolute rotation can give an advantage for this system in compare to other rotational seismometers, which calculate rotational events in indirect ways. The comparison of data from the described fiber-optic rotation seismometer and two antiparallel pendulum seismometers are also presented.

Citation Download Citation

Leszek R. Jaroszewicz and Z. Krajewski "Possibility of fiber optic rotational seismometer design", Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); https://doi.org/10.1117/12.484590

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