【摘要】 通过光电编码器对波耳共振仪的数据进行可视化与精确化处理,设计相应的机械结构安装光电编码器,编写STM32单片机程序,间隔10ms读取编码器信息,并将摆轮的信息实时呈现在计算机上.对所采集的大量数据进行处理,可得角位移-时间曲线、角速度-时间曲线和振动相图.利用改进后的仪器可探究自由振动、阻尼振动、受迫振动的运动规律并观察上述物理运动中的混沌现象.更多还原

【Abstract】 The visualization and precisization of Pohl resonance instrument were achieved by using photoelectric encoder.A mechanical structure was designed to host the encoder and a STM32 microcontroller were adopted to read the encoder every 10 milliseconds.Thus,the real time data of the balance wheel could be presented on the computer screen.The angular displacement-time and angular speed-time graphs and the vibration phase diagram were obtained after data processing.By utilizing the improved instrument,the law of free oscillation,damped oscillation,forced oscillation,compound pendulum oscillation and chaos phenomenon could be observed.更多还原