Vibration type angular velocity sensor

Details Vibration type angular velocity sensor Vibration type angular velocity sensor

2005-06-21

2005-06-21

Williams, Hezron (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

Reexamination Certificate

active

06907784

ABSTRACT:
An angular velocity sensor has an adjustment circuit for adjusting the amplitude of a detection signal generated corresponding to a displacement of each of arm portions vibrating in the X-axis direction. The adjusted signal is input as a comparison reference signal to operational amplifiers of amplifying circuits at the first stage. At this time, the comparison reference signal input to the non-inverting input terminals are applied by the operation(imaginary short-circuit) of the operational amplifiers, and act to offset the signal of an extraneous vibration component, so that an extraneous signal of the vibrator can be adjusted.

REFERENCES:
patent: 4671112 (1987-06-01), Kimura et al.
patent: 5987987 (1999-11-01), Watarai et al.
patent: 6282957 (2001-09-01), Akimoto et al.
patent: 60188809 (1985-09-01), None
patent: A-H03-156312 (1991-07-01), None

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