著者
鴨下 隆志 広瀬 武範 中村 哲夫 矢野 宏
出版者
一般社団法人 品質工学会
雑誌
品質工学 (ISSN:2189633X)
巻号頁・発行日
vol.4, no.2, pp.49-57, 1996-04-01 (Released:2016-03-24)
参考文献数
7
被引用文献数
2

In order to study the calibrating method and the error after calibration for a measuring system, the method to determine the dimensional measuring error of a component part through experimentation was discussed. The procedures of this method followed the guidelines described in JIS Z9090, measurement-General rules for calibration system, a standard established based on the concepts of quality engineering. The calibration was conducted by such new concepts. Up to present, the determination of measurement error has been ambiguous. But from this study, it was concluded that error can be rationally determined by one of the three practical cases of picking up the sources of error. lt is also stated in this paper that quality engineering approaches can be applied to determine the expanded uncertainty which is included in ISO Guide of the Expression of Uncertainty in Measurement.
著者
髙橋 新吾 中村 哲夫 有馬 祐杜 橋本 秀紀 中村 壮亮
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集 (ISSN:21879761)
巻号頁・発行日
vol.83, no.853, pp.17-00035-17-00035, 2017 (Released:2017-09-25)
参考文献数
9

This paper proposes an electrocardiogram (ECG) measuring system which simultaneously enables the reduction of input impedance and low-frequency cutoff through virtual amplification of the coupling capacitance formed by body capacitance and ECG electrode. This virtual amplification of the coupling capacitance is realized by the additional circuit which controls the inflow of external current to create the situation as if the time constant of the capacitance has increased. Moreover, not only this additional function but the amplification circuits commonly used in ECG measuring system has also been perfectly tuned-up. Here, instead of using the MOS-FET which shows bad noise characteristics, the combinations of J-FET differential amplifier and current feedback circuit have been used for stable amplification. In addition, coupling capacitors of the system are removed due to the DC-Coupling enabled by using single operational amplifiers instead of instrumentation operational amplifiers.
著者
楠戸 一彦 中村 哲夫 鈴木 明哲 崎田 嘉寛 孫 喜和
出版者
広島大学
雑誌
基盤研究(B)
巻号頁・発行日
2010

本研究は,1946年に「対日アメリカ教育使節団」の一員として来日したC.H.マックロイ(1886-1959)の実践と理論が中国と日本に与えた影響について,まず中国で活動した時期(1913-1926)における実践と理論を中国の国立文書館や大学図書館及びアメリカの公立図書館と大学図書館で調査を実施した。次いで,調査結果に基づいて,マックロイの体育思想の中国と日本への影響について考察を進めた。これらの研究成果については,学会で発表すると同時に,学術誌に投稿し,『研究成果報告書』を作成した。