著者

高畑 智之 渡辺 諒 グェン ミンジューン 高橋 英俊 松本 潔 下山 勲

出版者

一般社団法人 日本機械学会

雑誌

シンポジウム: スポーツ・アンド・ヒューマン・ダイナミクス講演論文集

巻号頁・発行日

vol.2015, pp._C-8-1_-_C-8-4_, 2015

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We propose a precise altitude change measurement method by sensor fusion of sensitive pressure change sensor, which is based on MEMS differential pressure sensor, and commonly used pressure sensor. Precision of the fused pressure measurement was as high as 0.1 Pa. We measured the pressure change during walking up stairs.

著者

安永 竣 グェン ミン ジューン 髙畑 智之 下山 勲

出版者

一般社団法人 日本機械学会

雑誌

ロボティクス・メカトロニクス講演会講演概要集

巻号頁・発行日

vol.2017, pp.1A1-K07, 2017

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<p>In this paper, we developed a method of measuring altitude using a MEMS differential pressure sensor (DPS) with a cavity, for an unmanned aerial vehicle (UAV). The method includes modeling of DPS and prevention of the influence by the wind. Firstly, we built a transfer function model of the DPS and measured two parameters required for calculating altitude. The parameters were obtained with two experiments: applying static and dynamic pressure onto the both side of the DPS. Secondly, we developed on the basis of fluid dynamics a shielding cap which protects the sensor chip from direct wind caused by the propellers on a UAV, while keeping it to pursue the static pressure. The most sufficient cap, which is spherical with holes at a specific angle to the wind axis, removed both noise and the dynamic pressure.</p>