A method for stabilizing the amplitude of a bell-shaped oscillator-type angular rate gyro oscillator

Abstract

The invention provides a method for stabilizing the amplitude of a bell-shaped oscillator type angular rate gyrotron. The method comprises the following steps of: (1) utilizing a reference model and observed x axial signals and y axial signals of a bell-shaped oscillator to calculate the running errors and the error variation rate of the bell-shaped oscillator; (2) carrying out concentrated filtering and state reconstruction on the x axial signals, the y axial signals, the oscillator running errors and the variation rate of the running errors to reconstruct x axial displacements, y axial displacements, a variation rate of the x axial displacements, a variation rate of the y axial displacements, the running errors of the bell-shaped oscillator and a variation rate of the running errors in a new state; and (3), and designing a self-adaptive slip form controller according to the given system input and reconstruction state, and controlling the bell-shaped oscillator to maintain a stable amplitude motion. The method provided by the invention has the advantages that the amplitude value stabilizing degree of the bell-shaped oscillator type angular rate gyroscope is improved, the stabilizing time is shortened, the development time of the whole bell-shaped oscillator type angular rate gyroscope is shortened, and a basis is provided for the reasonable design of the bell-shaped oscillator type angular rate gyroscope.

Description

technical field [0001] The invention belongs to the technical field of angular rate gyroscopes, and in particular relates to a method for stabilizing the amplitude of a bell-shaped oscillator type angular rate gyroscope oscillator. Background technique [0002] As an inertial device that is sensitive to the angular motion of the carrier, the gyroscope is the core component of inertial navigation and guidance. Vibrating gyroscopes based on the principle of Coriolis force have all the inertial qualities, and their status in the field of inertial technology is becoming more and more important. It has been widely concerned as a new generation of inertial instruments. Driven by the development of science and technology and market demand, various vibrating gyroscopes have emerged one after another. [0003] The application number is: ZL201010215745.1, and the patent application titled "Bell Oscillator Angular Rate Gyroscope" provides a bell-shaped oscillator type angular rate gyr...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a brand-new bell-shaped vibrator in order to overcome the shortcomings of the bell-shaped oscillator-type angular rate gyroscope amplitude stabilization loop designed by empirical judgment and trial-and-error method, the response time of which is difficult to control, the debugging period is long, and the amplitude stability is poor. Method for Amplitude Stabilization of Angular Rate Gyro Oscillators

Images