Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
2011-06-14
2011-06-14
Kwok, Helen C. (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
active
07958781
ABSTRACT:
A gyroscope structure41includes ring structure42supported from a central hub43by eight compliant support legs44ato44h.Primary drive transducers45aand45band secondary drive transducers46aand46bare all located around and in spaced relationship with the external periphery of the ring structure42to create capacitive gaps and primary pick-off transducers47aand47band secondary pick-off transducers48aand48bare all located around and in spaced relationship with the internal periphery of the ring structure42to create capacitive gaps. The gyroscope structure41includes sixteen capacitor plates49ato49pin spaced relationship to the ring structure42to create capacitive gaps. Two groups of capacitive plates49ato49dand49ito49lare all located around the internal periphery of the ring structure42and two groups of capacitor plates49eto49hand49mto49pare all located around the external periphery of the ring structure42.Each capacitor plate49ato49pis arranged to generate a predetermined electrostatic force, which acts upon the ring structure42to locally adjust the stiffness of the ring structure42.The positioning of the transducers45ato48band capacitor plates49ato49preduces the effect of variation a capacitive gap with ring structure42due to temperature change, thereby improving the scalefactor of the gyroscope structure.
REFERENCES:
patent: 3924475 (1975-12-01), Stiles
patent: 5616864 (1997-04-01), Johnson et al.
patent: 5831162 (1998-11-01), Sparks et al.
patent: 6151964 (2000-11-01), Nakajima
patent: 6343509 (2002-02-01), Fell et al.
patent: 6401534 (2002-06-01), Fell et al.
patent: 7123111 (2006-10-01), Brunson et al.
patent: 7637156 (2009-12-01), Araki et al.
patent: 1 775 551 (2007-04-01), None
patent: WO03/078302 (2003-09-01), None
patent: WO2006/006597 (2006-01-01), None
Atlantic Inertial Systems Limited
Kwok Helen C.
Scully , Scott, Murphy & Presser, P.C.
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