驱动电压对石英音叉陀螺零偏稳定性影响  

Effect of Driving Voltage on Zero Bias Stability of Quartz Tuning Fork Gyroscope

作　　者：李澳 方飞浒 梁金星[1] LI Ao;FANG Feihu;LIANG Jinxing(School of Instrument Science and Engineering,Southeast University)

机构地区：[1]东南大学仪器科学与工程学院

出　　处：《仪表技术与传感器》2025年第2期1-5,共5页Instrument Technique and Sensor

摘　　要：由于石英音叉陀螺自激振荡时,驱动系统的稳定性直接影响着陀螺的输出稳定,并且驱动电压也与陀螺的最终性能密切相关,因此,对驱动系统的研究有助于后续陀螺性能的提升。针对石英音叉陀螺驱动系统,简要分析了驱动系统稳定性和驱动电压幅值对陀螺输出性能的影响,设计了一种基于自动增益控制(AGC)技术的石英音叉陀螺驱动系统,在Simulink中对该驱动系统进行仿真,并分别对不同幅值的驱动电压信号和陀螺输出性能进行实验测试。实验结果表明,当驱动检测电压为1V左右时,驱动幅值标准差达到4.901μV,驱动频率稳定性为0.002 54 Hz,此时石英音叉陀螺标度因数为1.283 1 mV·s/(°),零偏稳定性为1.76 (°)/s。该驱动系统通过调控驱动电压幅值,为进一步提升石英音叉陀螺性能提供了参考。Due to the self-excited oscillation of the quartz tuning fork gyroscope,the stability of the driving system directly affects the output stability of the gyroscope,and the magnitude of the driving voltage is closely related to the final performance of the gyroscope.Therefore,research on the driving system is helpful for improving the performance of the gyroscope in the future.For the quartz tuning fork gyro drive system,the influence of driving system stability and driving voltage amplitude on gyroscope output performance was briefly analyzed.A quartz tuning fork gyroscope driving system was designed based on automatic gain con-trol(AGC)technology.The driving system was simulated in Simulink,and experimental tests were conducted on driving voltage signals of different amplitude sizes and gyroscope output performance.The experimental results show that when the driving detec-tion voltage is about 1 V,the standard deviation of the driving amplitude reaches 4.901μV.The stability of the driving frequency is 0.00254 Hz.At this time,the scale factor of the quartz tuning fork gyroscope is 1.2831 mV·s/(°),and the zero bias sta-bility is 1.76(°)/s.The driving system provides a reference for further improving the performance of quartz tuning fork gyro-scopes by regulating the amplitude of the driving voltage.

关 键 词：石英音叉陀螺 自动增益控制 驱动电压 稳定性 零偏性能 

分 类 号：TN384[电子电信—物理电子学]