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CORR
2007
Springer

Impact of Thermal Behavior on Offset in a High-Q Gyroscope

10 years 11 months ago
Impact of Thermal Behavior on Offset in a High-Q Gyroscope
In this paper, the CFD approach is used to simulate the thermal behavior in a sensitive high-Q gyroscope. The electromagnetically driving wires, in which the alternating current flows, are treated as Joule heat sources in the model. We found that the differences of the temperature, pressure and velocity along the driving direction and transversely across the proof masses increased as the gap height between the proof mass and top glass became smaller. Local pressure gradient is expected to possibly enhance the impact of any imperfect led by MEMS processes or designs on the offset of our tuning fork type gyroscope, which has been experimentally verified. A device with 200um gap gives a two-third offset down compared with that of its counterpart with 50um gap. Keywords- Offset, gyroscope, CFD, pressure gradient
Fei Duan, Jiwei Jiao, Yucai Wang
Added 18 Dec 2010
Updated 18 Dec 2010
Type Journal
Year 2007
Where CORR
Authors Fei Duan, Jiwei Jiao, Yucai Wang
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