基于红外反射传感器的三线摆周期测量装置
Physics Experimentation（2019）
Abstract
将红外反射传感器应用于三线摆周期测量装置, 通过红外反射传感器将三线摆下盘的扭摆转换成电压信号的变化, 利用数据采集系统采集并在电脑上实时显示与存储.改进后的实验装置相对误差仅有0.19％, 准确度更高, 调节简便、可靠性高.
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Key words
rotational inertia,three-wire pendulum,infrared reflection sensor,data acquisition,Fourier transform
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