This paper reports on the mathematical modeling of the quadrature error of a microgyroscope due to the imbalance of the flexures. Quadrature error occurs when the proof mass of a microgyroscope oscillates along an axis that is not exactly parallel to the X-axis. The asymmetric spring flexures due to manufacturing variation can cause the proof mass to rotate when a force acts on the proof mass. The mathematical mode is verified using finite element software, Intellicad, and found to have a good agreement with the simulation results for angles of rotation of comb fingers below 5.26 degrees . The mathematical model provides a new avenue of approach in solving the quadrature error problem and in saving the overall simulation time. The spring constant of the fishhook flexure can be calculated form Castigliano's energy theorem and substituted into the mathematical mode to find out the size of the quadrature error. The sensitivity of a fishhook flexure to its dimensions is analyzed.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Mathematical modeling on the quadrature error of low-rate microgyroscope for aerospace applications


    Contributors:
    Yeh, B.Y. (author) / Liang, Y.C. (author) / Tay, F.E.H. (author)


    Publication date :

    2000


    Size :

    11 Seiten, 9 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Integrated Microgyroscope

    T. J. Hawkey / R. P. Torti | NTIS | 1993


    A low-cost rate-grade nickel microgyroscope

    Alper, S.E. / Silay, K.M. / Akin, T. | Tema Archive | 2006