Abstract
Gyroscopes would be more reliable and less expensive if they had neither spinning wheels nor flotation fluids. Single-degree-of-freedom gyro (SDFG) wheel bearings must be stiff and isoelastic, and for both SDFGs and dynamically tuned gyros (DTGs) the bearings must be noiseless, as low friction as possible, and must start at low temperatures. Gas bearings cost more, and flotation fluids can require temperature control, damping compensation, and scrupulously clean assembly. By the 1960s every reasonable path around these problems had been tried.
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Lawrence, A. (1998). Vibrating Gyroscopes. In: Modern Inertial Technology. Mechanical Engineering Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1734-3_11
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DOI: https://doi.org/10.1007/978-1-4612-1734-3_11
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