Method of making an X-Y axis dual-mass tuning fork gyroscope...

Etching a substrate: processes – Etching of semiconductor material to produce an article...

Reexamination Certificate

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C216S067000, C216S088000, C216S089000, C073S504020

Reexamination Certificate

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11193127

ABSTRACT:
A method for making an angular velocity sensor having two masses which are laterally disposed in an X-Y plane and indirectly connected to a frame is provided. The two masses are linked together by a linkage such that they necessarily move in opposite directions along Z. Angular velocity of the sensor about the Y axis can be sensed by driving the two masses into Z-directed antiphase oscillation and measuring the angular oscillation amplitude thereby imparted to the frame.

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