The work aims to evaluate the adaptability of gyro products in the environment of angular vibration.An angular vibration test system based on a single line vibration table was developed.Based on the principle of line angle conversion,an ar-ticulated mechanical structure was designed to convert the translational freedom of the line vibration table into rotational free-dom.Based on the principle of angular vibration control,the control flow was designed and the closed-loop control was real-ized.An angular constant frequency test and an angular sweep frequency test were carried out to verify the control effect of the system.The two methods of line parameter control and angle parameter control were compared.The result showed that the angle parameter control method had higher control precision.Because of the closed-loop control,the angle parameter control method could directly affect the angle parameter value through the adjustment of the drive voltage,so as to offset part of the error intro-duced by the system connection,decoupling or vibration.The angular vibration test system solves the problems of limited rota-tion radius and limited line capacity,overcomes the problem of too narrow frequency band of the swing table,and provides a new method for the angular vibration test.
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