石英晶体振荡器加速度效应及敏感度的测试

Acceleration Effect and Sensitivity Measurement of the Quartz

石英晶体振荡器因其具有频率稳定度高的特点,作为标准频率源或脉冲信号源提供频率基准是目前其它类型的振荡器所不能替代的.而加速度对晶振输出频率影响的补偿问题目前还没有得到很好解决,加速度已成为当前影响晶体振荡器准确度的重要因素.本文简要介绍了加速度对晶体频率的影响,国内外加速度敏感度的测试方法及其改进方法,并以实验验证,取得了较好的效果.

Quartz crystal oscillator is used as the standard frequency source or pulse signal source to provide frequency benchmark because of its stable output frequency.It cannot be substituted by any other kinds of oscillators.But the problem how to compensate the influence of acceleration on the output frequency of the quartz crystal oscillator has not been worked out.The acceleration has become the important factor affecting the quartz crystal oscillator precision.This paper introduces the influence of acceleration on the oscillator frequency and the methods for measuring the acceleration sensitivity.Also,some experiments were performed to verify the effect of the digital compensation.