| 摘要 |
FIELD: instrument making.SUBSTANCE: invention relates to acoustic electronic devices intended for converting of base rotational angular velocity into an electrical signal. This invention consists in the fact that on the outer surface of the bearing base there is made a trapezoidal ledge located mirror-like to the trapezoidal ledge on the inner surface of the bearing base and aligned with it in shape and size, while a thin film of piezoelectric material with installed on it regular structure of inertial masses and measuring interdigital transducers for every direction of rotation of the bearing base are installed on the surface of the small base of the trapezoidal ledge made on the external surface of the bearing base, on the surface of a small base of trapezoidal ledge made on the inner surface of the bearing base, there are additionally installed a thin film of piezoelectric material with regular structure of inertial masses, located in staggered order, and measuring interdigital transducers for every direction of rotation of the bearing base; at that, on side surfaces of trapezoidal projection made on the external surface of the bearing base, there are additionally installed symmetrically to each other active piezoelectric transducers providing excitation of longitudinal acoustic waves in the material of the bearing base in the directions of determined angle, preset position of side surfaces of trapezoid projection relative to inner surface of the bearing base, and in counter phase relative to active piezoelectric transducers arranged on side surfaces of trapezoidal ledge on inner surface of the bearing base, the outputs of measuring interdigital transducers arranged on the surface of small bases of trapezoidal ledges arranged on both sides of the bearing base in pairs are electrically connected to inputs of adders while outputs of the latter are electrically connected to inputs of the adders, respectively for every direction of rotation of the bearing base.EFFECT: broader functional capabilities and increase in the level of the useful signal by comparison with the level of noise signals.1 cl, 5 dwg |
