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2010
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Invention
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Capacitive displacement transducer for a weak-motion inertial sensor. A broadband weak-motion ine... |
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Invention
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Force-feedback seismometer. 3 at 0.01 Hz. |
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2009
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Invention
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Capacitive displacement transducer for a weak-motion inertial sensor. A capacitive displacement t... |
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Invention
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Force-feedback seismometer. A broadband weak-motion seismometer includes: a frame, a mass, a susp... |
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2008
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P/S
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Scientific instruments used in the geophysical-geological and environmental monitoring fields, ge... |
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P/S
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scientific instruments used in the geophysical-geological fields, namely, seismological instrumen... |
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P/S
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Scientific instruments used in the geophysical-geological and environmental monitoring fields, na... |
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P/S
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Scientific instruments used in the geophysical-geological fields, namely, transducers to measure ... |
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2007
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Invention
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Inertial sensor having a flexing element supporting a movable mass. A long-period weak-motion ine... |
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Invention
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Seismic sensor. A seismic sensor includes a frame, a pendulum pivotably mounted to the frame, a m... |
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2006
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Invention
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Inertial sensor. A long-period weak-motion inertial sensor comprising: a frame having a frame mou... |
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Invention
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Seismic sensor. A seismic sensor comprising: a frame; a pendulum pivotably mounted to the frame; ... |
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Invention
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Mass positioning apparatus for a seismic sensor. A mass positioning apparatus for use with seismi... |
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Invention
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Mass positioning adjustment mechanism for a seismic sensor. A mass position adjustment apparatus ... |
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Invention
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Seismic sensor with thermal stabilization. A seismometer comprising a pressure sealed enclosure; ... |
