Dual-axis yaw rate sensing unit having a tuning fork...

Details Dual-axis yaw rate sensing unit having a tuning fork... Dual-axis yaw rate sensing unit having a tuning fork...

2008-07-22

2008-07-22

Kwok, Helen C. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504120

Reexamination Certificate

active

07401517

ABSTRACT:
A dual-axis tuning fork gyroscope includes four open-ended tuning forks arranged coplanarly in two opposite pairs, a first pair of open-ended tuning forks being arranged opposite one another along a first axis, a second pair of open-ended tuning forks being arranged opposite one another along a second axis, the first axis and the second axis being perpendicular to one another. The four open-ended tuning forks are mechanically coupled together so that all four tuning forks vibrate in the same manner in terms of frequency and phase.

REFERENCES:
patent: 3354413 (1967-11-01), Ko
patent: 6177756 (2001-01-01), Yachi et al.
patent: 6462530 (2002-10-01), Layton
patent: 6584844 (2003-07-01), Beitia
patent: 7216540 (2007-05-01), Inoue et al.
patent: 2007/0013464 (2007-01-01), Pan et al.

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