DocumentCode :
2277513
Title :
Adaptive oscillator control for a vibrational gyroscope
Author :
Leland, Robert P. ; Lipkin, Yacov ; Highsmith, Alton
Author_Institution :
Electr. & Comput. Eng., Alabama Univ., Tuscaloosa, AL, USA
Volume :
4
fYear :
2003
fDate :
4-6 June 2003
Firstpage :
3347
Abstract :
We present an adaptive controller for the drive axis of a vibrational gyroscope. A piezoelectrically driven gyroscope is operated as an oscillator circuit, by using a destabilizing positive feedback with automatic gain control. We adapt the feedback loop gain to obtain the desired amplitude for the oscillation and a parameter of the phase shift component in the feedback loop to yield a 90° phase shift. No sinusoidal driving input is required, and naturally occurring noise is the only input. The resulting oscillation is at the drive axis resonant frequency.
Keywords :
adaptive control; automatic gain control; control system synthesis; gyroscopes; microsensors; noise; oscillators; piezoelectric oscillations; resonance; state feedback; adaptive oscillator controller; automatic gain control; destabilizing positive feedback; drive axis; feedback loop gain; naturally occurring noise; oscillations amplitude; oscillator circuit; phase shift component parameter; piezoelectrically driven gyroscope; resonant frequency; vibrational gyroscope; Adaptive control; Automatic control; Feedback circuits; Feedback loop; Gain control; Gyroscopes; Oscillators; Programmable control; Resonant frequency; Vibration control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
ISSN :
0743-1619
Print_ISBN :
0-7803-7896-2
Type :
conf
DOI :
10.1109/ACC.2003.1244048
Filename :
1244048
Link To Document :
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