Patent ID: 7673511
Filing Date: 2010-03-09
Classification: G01C

Abstract:
1. A vibration gyro, comprising: a resonator which comprises a base section and three legs comprising two drive legs having drive electrodes and a single detection leg having a detection electrode, said three legs having substantially same thickness, said base section being joined to said three legs, and said three legs being disposed parallel to each other to make a vibration plane, and said two drive legs lay adjacently, wherein a width of said single detection leg is formed to be less than ⅗ of a width of said drive legs, and a length of said single detection leg is formed to be greater than respective lengths of said two drive legs to make a natural vibration frequency of said single detection leg in an out-of-plane vibration almost match a natural vibration frequency of said two drive legs in an out-of-plane vibration.