@techreport{oai:ipsj.ixsq.nii.ac.jp:00228895,
 author = {峯尾, 俊作 and 山本, 歩 and 黒木, 伸一郎 and 百瀬, 英哉 and 上口, 光 and Shunsaku, Mineo and Ayumu, Yamamoto and Shin-Ichiro, Kuroki and Hideya, Momose and Koh, Johguchi},
 issue = {28},
 month = {Nov},
 note = {本研究ではウェアラブル発汗量計測システムの作成，実測を行った．作成した発汗量計測システムは，肌表面に空気を流し，計測部前後の空気の温度と相対湿度から発汗量を比定する．提案システムではマイクロブロワ駆動回路，温度センサ用 AD 変換器，相対湿度センサ用 AD 変換器，チップコントローラを一つのチップ上に集積した．相対湿度センサ容量計測回路の改善により，その計測精度を従来の計測方法と比較して最大 250 倍まで向上させ，低消費電力化を実現した．マイクロブロワ駆動回路により，風量制御を可能にした．マイクロ流路とカスタムフレキシブルボードの実装により小型化，柔軟性実現した．模擬皮膚と電子天秤を用いた実測により発汗量との相関関係を調べ，発汗量計測システムの妥当性を証明した．また，換気流量を可変とした場合の発汗量の校正手法を，実測結果をもとに確立した．, This paper presents a wearable perspiration monitoring system to enhance the accuracy. The proposed system circulates air on human skin surface and measures a perspiration based on temperature and relative humidity values before and after skin passage. A micro blower driver, AD converters for capacitive humidity sensors and thermistors, and controller are integrated into a chip with a 0.18 µm BCD process. The proposed system improves the accuracy up to 250 times higher compared with the previous prototype system. Additionally, the power dissipation can be effectively suppressed by reducing charge/discharge cycles. Also, the designed micro blower driver can blow air sufficiently and regulate the flow rate. A flexible board with a mounted chip and PDMS micro air-flow path enable miniaturization and flexibility. Furthermore, the correlation between output value of the system and amount of perspiration weighed with an electric balance has been investigated by demonstrating with a prototype system and simulated skin. The experimental results show a perspiration monitoring capability of the system. In addition, a calibration method has been established for the proposed system with valuable ventilation flow rate, which enables a dissipated power suppression.},
 title = {0.18µm BCDプロセスを用いたウェアラブル発汗量計測システムの作成とその高精度化への検討},
 year = {2023}
}