Methods for increasing the accuracy of micromechanical gyroscopes

Author

Severov, Leonid A. ; Ponomarev, Valery K. ; Panferov, Alexander I. ; Ovechinnikova, N.A.

Author_Institution

Int. Inst. for Adv. Aerosp. Technol., State Univ. of Aerosp. Instrum., St. Petersburg, Russia

fYear

2005

fDate

24-26 Aug. 2005

Firstpage

509

Lastpage

516

Abstract

The paper considers methods for increasing the accuracy of micromechanical gyroscopes and controlling the working frequencies of the device. It is shown that improvement of characteristics of miscrogyroscopes may be achieved only by using an automatic system which tunes and stabilizes the main parameters of the device. The paper presents a circuit of oscillation excitation with the reference generator for which frequency is automatically adjusted to the mechanical resonance frequency of the sensitive element with respect to the excitation axis. The circuit for frequency auto tuning of the reference generator is shown.

Keywords

automatic frequency control; control system analysis; gyroscopes; micromechanical devices; oscillations; stability; automatic system; frequency auto tuning; frequency control; mechanical resonance frequency; micromechanical gyroscopes; oscillation excitation; reference generator; Aerospace electronics; Electrostatics; Frequency; Gyroscopes; Laboratories; Micromechanical devices; Motion analysis; Space technology; Stability; Vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics and Control, 2005. Proceedings. 2005 International Conference

Print_ISBN

0-7803-9235-3

Type

conf

DOI

10.1109/PHYCON.2005.1514036

Filename

1514036