@article{oai:jaxa.repo.nii.ac.jp:00035462, author = {NAKANISHI, Fujio and ITO, Masaharu and KITAMURA, Kikuo}, issue = {87}, journal = {東京帝國大學航空研究所報告, Report of Aeronautical Research Institute, Tokyo Imperial University}, month = {Sep}, note = {In this new indicator, which is of the optical type, the natural frequency of the moving part is made very high by greatly diminishing the motion, while the decrease in sensitivity is compensated by lengthening the arm of the optical lever to 3~4 metres. The natural frequency is 7000~10,000 per sec. Although the indicator is connected directly to the engine cylinder, a special device prevents the engine vibration from affecting the pressure indication., 資料番号: SA4147152000}, pages = {161--177}, title = {A New High-Speed Indicator for Internal Combustion Engines.}, volume = {7}, year = {1932} }