| 摘要 |
<p>A rate gyroscope generates pressure signals in a hydraulic circuit proportional to the rate of turn of the support on which the gyroscope is mounted; for example, a ship having roll stabilization fins. The gyroscope cage is connected to a flapper controlling the escape of fluid from a pair of nozzles, the connection being through a torsionally resilient member which gives a natural frequency of vibration of the flapper many times the highest oscillation rate of the ship or other base for the gyroscope. The gyroscope cage is unrestrained by centering springs or the like, and precession away from a neutral position is resisted solely by the jet reaction forces at the flapper valve. The device is entirely fluid operated, both for rotor spin and for precession read-out.</p> |
