Vibrating structure gyroscope
A vibrating structure gyroscope (VSG), defined by the IEEE as a Coriolis vibratory gyroscope (CVG), is a gyroscope that uses a vibrating (as opposed to rotating) structure as its orientation reference. A VSG functions much like the halteres of flies (insects in the order Diptera).
Source: Wikipedia — Vibrating structure gyroscope (CC BY-SA 4.0)