Frequency Response Characteristics of a Rate Gyroscope Using a Microsyn

The method of obtaining a frequency response of a rate gyroscope, as described in this article, is applicable to any gyroscope which is equipped with a variable reluctance transformer (microsyn). The damping ratio of the gimbal system can be obtained under any environmental condition without mechanical rotation of the gyroscope and without breaking the electrical connections to it. The microsyn is electrically excited to exert upon the gimbal a sinusoidally varying-in-time torque of constant amplitude and of controllable frequency, and at the same time is used to indicate the resulting displacement of the gimbal.