本文阐述了基于π网络零相位法石英晶体测量中改变激励电功率对石英晶体电参数的影响。主要以π网络零相位法为测量方法,配以软件调节,硬件补偿等措施改变施加在石英晶体两端的激励功率,从而完成激励功率相关性的研究。重点阐述系统电阻校准方法和串联谐振电阻的测量。 This paper describes the influence of varying excitation electric power on the electrical parameters of quartz crystal based on the zero-phase π-phase quartz crystal measurement. Mainly to π network zero-phase method for the measurement method, together with the software adjustment, hardware compensation and other measures to change the excitation power applied to both ends of the quartz crystal to complete the study of the correlation of excitation power. Focus on the system resistance calibration method and the series resonant resistance measurement.