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Parameter identification of a parametrically excited rate micro-gyroscope using recursive least squares method

Mohammadi, Z ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2017
  3. Abstract:
  4. Estimation of physical parameters of a parametrically excited gyroscope is studied in this paper. This estimation is possible by reading the input and output data of the gyroscope. Because of different faults in the manufacturing process and tolerances, physical parameters of a gyroscope are not exactly same as the expected values of the manufacturer. Moreover, changing of temperature, humidity, external acceleration, etc. can change the physical parameters of the gyro. Thus, the physical parameters of gyroscope are not fixed values and may deviate from the desired designed values. The physical parameters of gyroscope determine the optimal region for working of gyroscope. Thus, if the parameters deviate from the original ones but the excitation frequency is fixed at its initial value, the sensitivity of the gyroscope will be reduced. The new parameters of the gyroscope can determine the new point of excitation frequency and, because of this, estimation of these parameters should be done to prevent sensitivity reduction. Estimation of these new parameters using the input and output values is studied here. © 2017 Sharif University of Technology
  5. Keywords:
  6. Estimation ; Gyroscope ; Least squares method ; Parametric excitation ; Frequency estimation ; Gyroscopes ; Least squares approximations ; Manufacture ; Excitation frequency ; Expected values ; Input and outputs ; Least squares methods ; Manufacturing process ; Parametric excitations ; Physical parameters ; Recursive least squares method ; Parameter estimation
  7. Source: Scientia Iranica ; Volume 24, Issue 4 , 2017 , Pages 1889-1900 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_4280.html