| 摘要 |
<p>The present invention discloses a method for obtaining and correcting incremental lock-in error values related to lock-in error in an annular rate sensor as well as an apparatus for implementing said method. The incremental lock-in error values are obtained by:
(i) characterizing the behavioral function of ψ by a first characteristic function ψb(t) determined by ψ(t) data before an occurrence of a zero rate crossing so that the value of ψb(t) at the zero rate crossing can be extrapolated therefrom;(ii) characterizing the behavioral function of ψ by a second characteristic function ψa(t) determined by ψ(t) data after the last zero rate crossing so that the value of ψa(t) at the last zero rate crossing can be extrapolated therefrom; and(iii) determining an incremental lock-in error value (Δψ,ε) which is the difference value between the values of ψ(t) at the same zero rate crossing determined by the first and second characteristic functions, ψa(t) and ψb(t).</p> |
