原文传递
SYMPOSIUM
GYRO TECHNOLOGY 1997
Improved Rale Gyroscope Designs Designated for Fabrication by Modern Deep Silicon Etching
| 题名： | SYMPOSIUM GYRO TECHNOLOGY 1997 Improved Rale Gyroscope Designs Designated for Fabrication by Modern Deep Silicon Etching |
| 作者： | H. Sorg W.Gdger, B Jolkmer, RSiudmaier, Wxapg |
| 关键词： | symposium；silicon；technology；fabric；design；improved；cope；modern；levitation；gnat |
| 摘要： | This paper reports on new vibrating comb-drive rate gyroscope designs featuring decoupling of the actuation and the detection mode. Analytical calculations as well as FEM and system simulations are carried out. It is investigated how to overcome the main drawbacks of these sensors which are especially the frequency mismatch of the two oscillation modes, the insufficient bandwidth and the effects of levitation. Concepts and simulations of electrostatically controlling both the resonance frequency and the bandwidth are presented. Within these concepts no mechanical balancing of the device is required and thus calibration costs are reduced. Simulations of a new quasi-rotating rate gyroscope show, that a resolution of 0.1 */s is possible at a bandwidth of 50 Hz with 6 mm* sensor area only and that the effects of levitation are actually compensated. A resolution of 0,5 Vs is demonstrated with the current measurement setup. |
| 报告类型： | 科技报告 |
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