Consideration of figure of merit of piezoelectric vibrator gyroscope usingcharge sensitivity

In this paper, charge sensitivity has been considered as a figure of merit of piezoelectric vibratory gyroscope. First, an approximate equation for ch arge sensitivity is derived based on an equivalent circuit of the gyroscope . Second, the charge sensitivity characteristics have been discussed in ter ms of the effects of frequency deviation and load capacitance. The differen ce between charge sensitivity and voltage sensitivity is quantitatively cla rified. Charge sensitivity is effective as a figure of merit for applying a piezoelectric single crystal to the gyroscope.