![]() The resonator is operated in its second-order resonant mode. This breakthrough technology gave a substantially increased product life (MTBF > 500,000 hours) with its shock resistance (>300G), it should qualify for "tactical" (mid-accuracy) applications. A recently patented variant by Innalabs uses a cylindrical design resonator made from Elinvar-type alloy with piezoceramic elements for excitation and pickoff at its bottom. in California, and piezo-ceramic variants by Watson Industries. Subsequently, in the 90s, CRGs with magneto-electric excitation and readout were produced by American-based Inertial Engineering, Inc. ![]() This type of gyroscope was developed by GEC Marconi and Ferranti in the 1980s using metal alloys with attached piezoelectric elements and a single-piece piezoceramic design. ( March 2011) ( Learn how and when to remove this template message)Ĭylindrical resonator gyroscope (CRG) Please help improve it by removing references to unreliable sources where they are used inappropriately. This section may contain excessive or inappropriate references to self-published sources. Inexpensive vibrating structure gyroscopes manufactured with MEMS technology are widely used in smartphones, gaming devices, cameras and many other applications.Ĭonsider two proof masses vibrating in plane (as in the MEMS gyro) at frequency ω r \omega _, we can thus determine the rate of rotation Ω \Omega. ![]() Vibrating structure gyroscopes are simpler and cheaper than conventional rotating gyroscopes of similar accuracy. The Coriolis effect causes the object to exert a force on its support, and by measuring this force the rate of rotation can be determined. ![]() The underlying physical principle is that a vibrating object tends to continue vibrating in the same plane even if its support rotates. A vibrating structure gyroscope functions much like the halteres of flies ( insects in the order Diptera). A vibrating structure gyroscope, defined by the IEEE as a Coriolis vibratory gyroscope ( CVG), is a gyroscope that uses a vibrating structure to determine the rate of rotation. ![]()
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