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http://dx.doi.org/10.5369/JSST.2012.21.3.204

Signal Detection and Control of Hemispherical Resonator Gyroscopes  

Hyun, Chul (M&S R&D Lab, LIG Nex1)
Kang, Tae-Sam (Department of Aerospace Information Engineering, Konkuk University)
Publication Information
Journal of Sensor Science and Technology / v.21, no.3, 2012 , pp. 204-210 More about this Journal
Abstract
In this paper, signal detection and control circuits for hemispherical resonator gyroscope(HRG) are designed, simulated and tested. HRG is one of the coriolis vibratory gyroscope(CVG) which has very stable quartz hemispherical resonator and shows very precise performance. HRG signals are usually modulated at the several kHz of resonant frequency. So the general control scheme cannot be applied directly because general control schemes mainly focused at low frequency range. Using demodulated and modulated PI control scheme with the signal detection which is presented in this paper, performance of manufactured HRG has tested.
Keywords
HRG; Vibratory Gyroscope; Signal Detection; PI Control;
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