Fused quartz cylindrical resonators for low-cost vibration gyroscopes

A design and a simple technology for manufacturing an inexpensive fused quartz resonator for general-purpose CVG are proposed. The resonator was made from a piece of commercially available fused quartz tube. The proposed technology makes it possible to manufacture such a resonator without the use of precision machining, while the Q-factor of such a resonator in the kilohertz frequency range reaches 1 000 000. Although this Q-factor is much lower than that of precision quartz resonators, it considerably exceeds the Q-factor of cylindrical metal resonators. In addition, the stability of the dissipative characteristics of the resonator is greatly increased, which, on the whole, reduces the systematic drift of the device and its instability. These advantages make it possible to significantly improve the accuracy of a general-purpose CVG without increasing its cost price. The design and characteristics of such resonators, the methods of their balancing, as well as the possible constructive appearance of CVG on their basis are given.