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http://dx.doi.org/10.5139/JKSAS.2008.36.7.674

Oscillation Amplitude-controlled Resonant Accelerometer Design using Aautomatic Gain Control Loop  

Yun, Suk-Chang (건국대학교 항공우주공학과 대학원)
Sung, Sang-Kyung (건국대학교 항공우주공학과)
Lee, Young-Jae (건국대학교 항공우주공학과)
Kang, Tae-Sam (건국대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.7, 2008 , pp. 674-679 More about this Journal
Abstract
In this paper, we introduce a new design approach for self-sustained resonant accelerometer, that takes advantage of the automatic gain control (AGC) loop to achieve a stabilized oscillation dynamics. Fundamental idea of this accelerometer is to maintain uniform amplitude of oscillation under input accelerations. Through system modeling and loop transformation considering the envelope of oscillation, the controller is designed to maintain uniform amplitude in oscillation under dynamic input acceleration. The simulation results demonstrate the feasibility of the proposed accelerometer design, which is applicable to control grade inertial measurement system in industrial and civil application fields.
Keywords
Resonant Accelerometer; Automatic Gain Control; Oscillation; Amplitude;
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