扭摆法测转动惯量实验系统的智能化改进

介绍了一种用PC机完成测量周期、计算转动惯量数值的新方法。从硬件和软件方面详细说明了如何用一台微机实现对整个实验系统中所有时间量的测量和对实验数据的处理。对改进后实验系统所测得的结果与传统方法的测量结果进行了比较,可以看出此方法接口电路简单,时间测量准确,计算速度快,实验结果误差小,而且易于推广。

Intelligentization of Experiment System Measuring Moment of Inertia Based on Torsion Pendulum Method

Measurement of moment of inertia is a very important experiment in university physics experiment. The main datum in the experiment of measuring moment of inertia based on Torsion pendulum method is time. What's more, data processing is very complex. The paper introduces a new method to measure time and process data in the whole experiment system with only one computer. In the end of the paper, a comparison is made between the experiment results of the improved system and those of the traditional system. It is obvious that, in this way, the interface circuit is simple, time can be measured exactly, data can be processed quickly and there is little error. This method can also be extended easily.