<研究論文>パソコンを利用した学生実験課題の開発研究 : A/D コンバータを用いた重力加速度の測定

概要

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We had previously developed the measurement system that applied the A/D converter, to carry out to the exercises for students in basic physics education. In this study we designed the application of the A/D converter to the measurment for the acceleration of gravity. The system was composed of the electric circuit which detected the period of a Boulder's pendulum, the A/D converter circuit and a personal computer. The mechanical vibration of a Boulder's pendulum was detected by the optical sensor, and the trigger pulse-wave outputted from the optical sensor generated the synchronous pulse-wave which was in agreement with the pulse interval, with the electric circuit developed. The computer program by Microsoft Visual Basic was used for the measurement of the pulse interval of the synchronous pulsewave and Microsoft Excel 2000 for the calculation of the vibrational period of the pendulum. As a result, the measued values for the acceleration of gravity by this measuring system was 9.79-9.82m/sec^2. It was thought that this measurement system was effective to raise the educational effect of the exercises for students.
日本大学の論文
2001-12-25