Axially symmetrical coriolis force gyroscope (variants)
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United States of America Patent
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Apr 26, 2016
Grant Date -
Apr 17, 2014
app pub date -
Nov 19, 2010
filing date -
Nov 19, 2010
priority date (Note) -
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Abstract
An axially symmetrical Coriolis vibratory gyroscope includes a thin-walled resonator with a hemispherical or cylindrical or toroidal form, the resonator being fixed at the center to a support and being formed with openings in that wall of the resonator which is located around the support, the number of openings being determined on the basis of the formula 4nk, where k is an integer, n is the order of oscillation modes, wherein the support has a symmetrical form along the longitudinal axis and is fixed to a base, electrodes are positioned on the wall of the resonator or next to the resonator for exciting and measuring two oscillation modes, a constant amplitude of one of the modes is maintained and a secondary oscillation mode which is sensitive to Coriolis forces is monitored, and the base is provided with a seat for the support of the resonator and with electrically insulated hermetically sealed leads which pass outwards via the base and through the openings in of the resonator.
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