著者

若松 武史 小野 精悟

出版者

一般社団法人 日本機械学会

雑誌

Dynamics & Design Conference

巻号頁・発行日

vol.2007, pp._802-1_-_802-5_, 2007

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Being capable of highly accurate measurement, P.D. flowmeters have been used conventionally in such applications as custody transfer and meter proving. For more accurate measurements, servo P.D. flowmeters, in which the serve motor drives the rotors so that the pressure difference across the rotors are appropriately controlled, have taken over ordinary P.D. flowmeters. Further requirements on these meters are, however, becoming tough year after year. Demands on high precision measurement of multiple liquid types with different properties, wider range-ability, and higher response are recently required.

著者

内田 勝一 若松 武史 長田 重慶 嶋田 隆司

出版者

一般社団法人 日本機械学会

雑誌

Dynamics & Design Conference

巻号頁・発行日

vol.2009, pp._114-1_-_114-5_, 2009

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A positive displacement (PD) flowmeters has been used for long years as it can measure volumetric flow directly. Since features of PD's are most exerted in oil related flow measurements, in present society which environmental issues are emphasized, they are required for high accuracy fuel consumption measurements in transport equipment industry such as automotive industry, as well as assuming an important role in cross-border transactions. Also, in recent years, development of secondary standards for JCSS registration is an urgent need; verification of our Screw PD Flowmeter is made, corresponding to such necessity.

著者

土肥 二郎 若松 武史

出版者

プレック研究所

雑誌

PREC study report (ISSN:13438913)

巻号頁・発行日

vol.11, pp.40-43, 2005-12