The frequency deviation of the leaf spring vibrator which has a added mass on its end depens on the position relating to the direction of the gravity. The relative deviation is given theoretically as follows: (P(θ)-P_0)/O_=c(α) g cosθ/P_0^2 1 Where θ is the angle between the direction of the leaf spring and that of the gravity, g the acceleration of the gravity, 1 the length of the leaf spring, P(θ) the circular frequency of the vibrator, P_0 = P(0)σ the ratio of the added mass to the mass of the leaf spring itself. The functional relations of C(σ) are given in this paper as the results of both theoretical and experimental analysis.
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