中文摘要：

扫描显微镜技术中作为力感应器件的石英晶振，其本征频率会由于黏合的针尖与环境的气体和压强不同而发生改变．介绍了通过有效质量、有效杨氏模量来研究各项条件改变对频移的影响的方法，并建立了统一的模型来解释实验结果，便于理解石英晶振的力感应特性．

英文摘要：

It is well established that quartz tuning forks can be used as sensors for acoustic and force microscopy. These self-oscillating high mechanical quality factor sensors provide a good method of detecting sub-pN forces especially at low temperature. This paper introduces the conceptions of effective mass and effective Yang module to simplify the calculation of the resonance frequency. Furthermore, a simplified model based on some theoretical analysis is set up to explain most of the experimental results and provide us another image of how the quartz tuning fork works.