The Modal Analysis and Test of Dithering of System of Laser Gyroscope

The finite element model of mechanically dithered ring laser gyroscope(RLG) was established on the basis of finite element software ANSYS,and the modal vibration characteristic is analyzed.Also,a comparison is made between the model analysis results and the experimental measurement results.The analysis results indicate that the results from finite element analysis are in agreement with those from the experimental measurements,whereby demonstrating that the established finite element model is rational and that the analysis results are reliable.