Abstract:The hemispherical resonator is one of the core components of the hemispherical resonance gyro(HRG), and the test of its vibration parameters plays a vital role in the parameter optimization of its structure design and the process of machining. This paper designs and implements a phase-amplitude control system of hemispherical resonator based on the PXI platform using LabVIEW programming, which is considered as an important component of the testing system, and proposes solutions to the problems of resonance frequency drift and amplitude attenuation in the test. The physical test shows that the system realizes the phase tracking and energy control of hemispherical resonator efficiently. It can solve the problem of frequency drifting and eliminate the influence of the initial amplitude inconsistency on the test of vibration performance parameters. It has advantages of high speed, high control accuracy and convenient function expansion, which greatly improves the efficiency of mass production and testing of hemispherical resonator.