Low Loss Crystal Systems
نویسنده
چکیده
X this pat)er we consider th effect ofthe damping or resistive mechanical loads on the characteristics of a piezoelectric crystal system vibrating in either a longitudinal or thickness mode. [n particular, the effect on the resonant and antiresonance frequencies is discussed. l.osses in the interior o[ the crystal are 'neglected. A quality [actor is defined [or damped crystal systems. The value of this quality factor is related to the mechanica) load impedances by appropriate formulas. The discussion is limited to consideration of systems xvhich are not too heavily damped. The meaning of this statement will become more precise as the theory is developed. The resnits are applied to particular systems for the pnrpose of ilhlstratlon. Some aspects of the double crystal acoustic interferometer are discussed.
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