On the Performance Characteristics of a Vortex Rate Gyro

概要

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The static and dynamic performance characteristics of a fluidic angular rate sensor were studied both theoretically and experimentally. It seems that the total time delay of a vortex rate gyro is composed of the time delay associated with the development of a stabilized tangential flow at the vortex chamber periphery plus the pure delay time associated with the fluid transport phenomenon. By this theoretical analysis, the transfer function of a vortex rate gyro was obtained as Ae^<LS>/(T_2s +1) and thereby, the effects of the vortex rate gyro configuration and supply flow rate on the pure delay time L, time constant T_2 and output sensitivity A were clarified. Experiments were conducted varying the vortex chamber thickness and the supply flow rate. It was found that experimental pure delay time L and time constant T_2 almost coincide with those obtained theoretically.
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