THREE AXIS GYROSCOPE
First Claim
1. A three axis gyroscope, comprising:
- a first gyroscope structure, anda second gyroscope structure,wherein one of the first and second gyroscope structures comprises a two axis gyroscope structure and another of the first and second gyroscope structures comprises a one axis gyroscope structure, anda lever spring system coupling a first linear drive mode oscillation of said first gyroscope structure and a second linear drive mode oscillation of said second gyroscope structure into one combined primary motion.
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Abstract
A micro-electro-mechanical device detects angular velocity, for example relating to a three axis gyroscope. The three axis gyroscope includes a two axis gyroscope structure and a one axis gyroscope structure. The gyroscope further includes a lever spring system coupling a linear drive mode oscillation of the two axis gyroscope structure and a linear drive mode oscillation of the one axis gyroscope structure into one combined primary motion. The lever spring system causes the one and two axis gyroscope structures to have equal drive mode oscillation amplitudes. A symmetrical arrangement of the lever spring system causes any reactive forces created in the lever spring system to cancel each other.
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Citations
20 Claims
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1. A three axis gyroscope, comprising:
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a first gyroscope structure, and a second gyroscope structure, wherein one of the first and second gyroscope structures comprises a two axis gyroscope structure and another of the first and second gyroscope structures comprises a one axis gyroscope structure, and a lever spring system coupling a first linear drive mode oscillation of said first gyroscope structure and a second linear drive mode oscillation of said second gyroscope structure into one combined primary motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A three axis gyroscope, comprising:
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a first gyroscope means for detecting first motion, a second gyroscope means for detecting second motion, wherein one of the first and second gyroscope means detects motion in two axes, and wherein another of the first and second gyroscope means detects motion in one axis, and a lever spring means coupling a first linear drive mode oscillation of the first gyroscope means and a second linear drive mode oscillation of the second gyroscope means into one combined primary motion. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification