光学放大方法定量测定玻璃杯的频率  

Optical Magnification to Quantitatively Measure the Frequency of Glasses

作　　者：夏正聪 王朝 叶芮 周润中 王涛[1] 段满益[1] XIA Zhengcong;WANG Zhao;YE Rui;ZHOU Runzhong;WANG Tao;DUAN Manyi(Sichuan Normal University,Sichuan Chengdu 610101)

机构地区：[1]四川师范大学,四川成都610101

出　　处：《大学物理实验》2018年第6期9-13,共5页Physical Experiment of College

基　　金：国家自然科学基金(11404230)

摘　　要：玻璃杯的固有频率会随杯内液体的高度和密度的改变而变化,用共振的实验方法测量其固有频率是一个非常有趣但较繁杂的实验。本文设计一种较为简单的光学放大方法实现测量玻璃杯在填充不同高度和浓度液体时的一阶共振频率及空杯子的一阶、二阶共振频率,并与理论结果及模拟仿真结果非常吻合。因本方法操作简单,效果直观,测量结果准确,非常适合应用于教学和科研工作中。The natural frequency of the glass varies with the height and density of the liquid in the glass,measuring the natural frequency with a resonance experimental method is a very interesting but complicated experiment.It designed a simpler optical amplification to measure the first-order resonance frequency of the glass filled with different concentrations of liquid and the first-order and second-order resonance frequencies of the empty glass.The method is simple to operate,the effect is intuitive and the measurement result is accurate,it very suitable for teaching and research work.

关 键 词：玻璃杯 共振频率 光学放大方法 液体填充 

分 类 号：O4-34[理学—物理]