振动条件下的晶振稳健性机理研究

RESEARCH ON CRYSTAL ACCELERATION ROBUSTNESS MECHANISM IN VIBRATION CONDITION

晶振在振动环境下产生严重的相位噪声恶化,由于其多学科交融的物理性质和在电子系统参考源中的应用价值而受到广泛关注。随着机电一体化设计理念的发展,研究振动环境下的信号调谐模式和探索它们独特的物理性质已经成为可能。该文从晶振的工作原理出发,分析了振动条件下相位噪声恶化的调谐原理,首次提出了一种新的晶振相位噪声振动恶化特征的物理表征方法。此外,搭建了晶振相位噪声测试系统,利用实验数据定量研究了各种输入条件对晶振电气性能的影响,并编制了相应的算法来进行求解,得出了非线性数学关系。最后,结合实验数据验证了机电一体化分析思路及物理表征方法的合理性,得到了晶振模块的振动稳健性矢量。

The phase noise of an oscillator is generated by serious deterioration in a vibration environment, and concerned due to the physical properties of multi-disciplinary integration and application value in electronic systems. Along with the development of scientific concept on mechanotronics, it becomes possible to study the noise in a signal tuning mode and to explore its unique physical properties in a vibration environment. Thusly, the tuning principle of phase noise deterioration under vibration conditions is analyzed according to the working principle of crystal in this paper. A new method of physical characterization of crystal oscillator phase noise and vibration deterioration characteristics are put forward. In addition, the measurement system of oscillator-phase noise is built. The influence of various input conditions on the electrical properties of the crystal is studied based on quantitative experimental data, and the corresponding algorithm is compiled to solve the mathematical problem. The nonlinear mathematics relationship of the problem is obtained. Finally, the mechanotronics analysis ideas and physical characterization methods are verified by experimental data, and the robust vector of crystal oscillator module in a vibration environment is calculated.