摘要
利用石英晶体的压电效应,通过对晶体频率特性和质量敏感原理的研究,将石英晶体应用到物理实验微小质量的测量.以7.990 39MHz的AT晶体作为传感器,设计了功能良好的振荡电路,测量了细粉笔灰的微小质量,并研究了晶体温度漂移对微小质量测量影响.
Based on researches of crystal frequency characteristics and mass-sensitive principle, quartz crystal was applied to measure tiny mass in physical experiments. Using 7. 990 39 MHz AT crystal as the sensor, an oscillation circuit was designed to measure the tiny mass of fine chalk powders. The influence of temperature drift on the mass measurement was discussed.
出处
《物理实验》
2012年第6期26-29,共4页
Physics Experimentation
基金
吉林省科技发展计划重点资助项目(No.20100458)
关键词
石英晶体
微质量测量
振荡电路
quartz crystal
micro-mass measurement
oscillation circuit
