SAR500 - A High-Precision High-Stability Butterfly Gyroscope with North Seeking Capability

D. Lapadatu, B. Blixhavn, R. Holm, T. KvisterÌüy

Abstract:	This paper describes a novel high-precision, low-noise, high-stability, calibrated and compensated digital oscillatory gyroscope with SPI interface, housed in custom-made ceramic packages. The device is factory-calibrated and compensated for temperature effects to provide high-accuracy digital output over a broad temperature range. Optimized tuning of the excitation and detection frequencies, as well as optimized mechanical and electrical balancing result in low sensitivity to shock and vibrations. By utilizing a unique sealed cavity technology, the vibrating elements of the gyroscope are contained within the low-pressure hermetic environment needed for high Q factors. Further on, improved stability of the device is achieved by full design symmetry, high thermal efficiency and choice of crystalline materials in the entire structure.
Published in:	Proceedings of IEEE/ION PLANS 2010 May 4 - 6, 2010 Renaissance Esmeralda Resort & Spa Indian Wells, CA
Pages:	6 - 13
Cite this article:	Lapadatu, D., Blixhavn, B., Holm, R., KvisterÌüy, T., "SAR500 - A High-Precision High-Stability Butterfly Gyroscope with North Seeking Capability," Proceedings of IEEE/ION PLANS 2010, Indian Wells, CA, May 2010, pp. 6-13. https://doi.org/10.1109/PLANS.2010.5507139
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