Vibrating rate gyro with slaving of detection frequency to...

Details Vibrating rate gyro with slaving of detection frequency to... Vibrating rate gyro with slaving of detection frequency to...

2007-01-09

2007-01-09

Kwok, Helen (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S504040

Reexamination Certificate

active

10539766

ABSTRACT:
The invention relates to a gyroscope comprising at least one mass capable of vibrating along an x axis at a resonant excitation frequency Fxcapable of vibrating along a y axis perpendicular to the x axis, at a resonant detection frequency Fy, under the effect of a Coriolis force generated by a rotation about a z axis perpendicular to the x and y axes. It includes, connected to the mass or masses, a feedback control loop for controlling the resonant frequency Fyso that Fyis equal or practically equal to Fxthroughout the duration of use of the gyroscope.

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Mochida Y et al: “A micromachined vibrating rate gyroscope with independent beams for the drive and detection modes”. Micro Electro Mechanical Systems, 1999 MEMS '99 Twelfth IEEE International Conference On Orlando FL, USA Jan. 17, 1999, pp. 618-623

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