Abstract
A rotational seismometer based on dual-polarization interferometric fiber optic gyroscopes is designed and demonstrated, it can measure three rotation components at the same time. The angle random walk is about 1.67×10−4∘/h . The self-noise ranging from 0.1Hz to 125 Hz is about 7.0×10−8rad/s/Hz . It can be applied to seismic monitoring, seismic exploration, engineering monitoring and other fields.
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