| 摘要 |
PURPOSE:To improve the sensitivity of detection with simple constitution and to eliminate the influence of an external acceleration, by mounting two flat plates having inertial mass symmetrically orthogonally with a shaft which oscillates alternately, and drawing out differentially the axial displacement of the flat plates generated by Coriolis forces. CONSTITUTION:Thin platelike members 13, 13' having a weight 14 are mounted symmetrically to a shaft 11, and a driving device 16 is driven by the output of a driving amplifier 5 to oscillate the plates 13, 13' alternately at an angular speed omega. When the weights 14, 14' move in opposite directions at a velocity (v), an angular speed OMEGA is inputted around an axis X and the upward and downward Coriolis forces FC act on the weights. The rates of deflection in the opposite directions at the forward ends of the plates 13, 13' which are generated as a result of said action are detected with a displacement detector 17, whereby the input angular speed OMEGA is detected. Since the Coriolis forces are detected as the direct displacement, the sensitivity of detection is high and since the thin plates are used as a sensing part, the influence of the external acceleration in the axial direction of the oscillation is eliminated and the construction is made simple and rigid. |
