一种半球陀螺电路实时自校准方法及半球陀螺
By employing a real-time self-calibration method using a hemispherical gyroscope circuit and utilizing alternating signals for demodulation and computation, the gain and phase errors of the hemispherical resonant gyroscope were resolved, achieving real-time error elimination and accuracy assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN 208 ADVANCED TECH CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hemispherical resonator gyroscopes have gain and phase errors in their ADC detection and DAC drive circuits, which affect closed-loop control and angle resolution. Furthermore, existing calibration methods cannot be updated in real time or are computationally complex, leading to error drift and reduced accuracy.
A real-time self-calibration method using a hemispherical gyroscope circuit is adopted. The CPU alternately transmits drive signals and self-calibration signals, and uses different signal types in every three alternating cycles for demodulation and operation to calibrate the gain coefficient and phase shift of the detection and drive circuit in real time, thereby eliminating errors.
It achieves real-time elimination of circuit gain and phase errors, avoids error drift, simplifies the calculation process, and ensures the accuracy and stability of the gyroscope.
Smart Images
Figure CN122083993B_ABST