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New Rotational Seismometer

Darren Laughlin, Dennis Smith, Andrew Cline

Applied Technology Associates produced a rotational seismometer in the early 1990s to solve a dynamic control problem of the Seismically Stable Platform on Holloman Air Force Base in New Mexico, USA. ATA is again answering the call for a rotational seismometer suitable for correcting linear seismometer measurement for g * sine theta disturbances caused by rotations. ATA will present preliminary performance predictions and an update on progress toward achieving a fieldable instrument. ATA has also recently developed an instrument to detect inertial north. The device is immune to magnetic disturbances and is tolerant of thermal variations. Performance and current configuration will be presented.

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