@article{oai:sucra.repo.nii.ac.jp:00019118,
 author = {齋藤, 彩 and 並木, 俊樹 and 近藤, 一史 and 大向, 隆三},
 issue = {2},
 journal = {埼玉大学紀要. 教育学部, Journal of Saitama University. Faculty of Education},
 month = {},
 note = {The periods of a cycloid pendulum were precisely measured using a photodetector and a single-board microcomputer. Our cycloid pendulum is composed of a commercial teaching material of a simple pendulum and a pair of cycloid shaped walls. Theoretically the period of the cycloid pendulum is constant, which is determined simply using the distance between the fulcrum of the pendulum and the center of gravity of the weight. However, our measured period, which has an accuracy of 1 μs, increased as the angular amplitude increased. The reasons for this discrepancy were mainly the air resistance of the weight and the deflection of the thread of the pendulum. Then, we changed the kind of weight and the materials of the thread and again measured the dependence of the angular amplitude on the periods of the cycloid pendulum. As a result, the periods were almost constant when we used the glass marble as a weight and the leveling string as a thread even if we increased the angular amplitude., text, application/pdf},
 pages = {483--491},
 title = {小学校教材で製作したサイクロイド振り子の周期精密測定<数学・自然科学>},
 volume = {69},
 year = {2020},
 yomi = {サイトウ, アヤ and ナミキ, トシキ and コンドウ, ヒトシ and オオムカイ, リュウゾウ}
}