@article{oai:u-ryukyu.repo.nii.ac.jp:02005164,
 author = {石田, 力 and 長堂, 勤 and 福村, 盛仁 and 早川, 忠宏 and 宇良, 健 and Ishida, Tsutomu and Nagado, Tsutomu and Fukumura, Morihito and Hayakawa, Tadahiro and Ura, Ken},
 issue = {35},
 journal = {琉球大学工学部紀要},
 month = {Mar},
 note = {We constructed a magnetic levitation system and stabilized it by a personal computer using the theory of an optimal regulator with an observer. we used, as a control equipment, the personal computer PC-9801F2 with the numerical calculating processer 8087. It takes 1.6ms for calculating a loop of a program. Comparing the two kinds of behaviours of a magnetic levitation system stabilized by a personal computer and an analog computer, we learned that the system stabilized by a personal computer swings, on the other hand, that by an analog computer does not swing. We guess it comes from the delay for computation by a personal computer., 紀要論文},
 pages = {95--103},
 title = {パーソナルコンピュータによる吸引型磁気浮上システムの安定化制御},
 year = {1988}
}