PROBLEM TO BE SOLVED: To provide a fluid transport device capable of controlling a precise total emission amount.SOLUTION: A fluid transport device 1 has: a tube 50 a cam 20 having protrusion parts 22-25 and fingers 40-46 arranged along the tube 50 between the tube 50 and the cam 20. The fluid transport device rotates the cam 20, sequentially presses the fingers 40-46 by the protrusion parts 22-25 in a fluid flowing direction, and repeats pressure-closing and opening of the tube 50 to emit the fluid. The device has: a driving rotor 120 for giving a rotation force to the cam 20 a detection part for detecting a rotation position of the cam 20 and a control part 140 for calculating a cam rotation angle to a cumulative emission amount using a first approximate expression of an emission region H in which the cumulative emission amount increases almost in proportion to a rotation angle of the cam 20 and a second approximate expression of a constant region J in which the cumulative emission amount rarely increases or decreases even when the cam 20 rotates, and driving a driving rotor 120 until it reaches the rotation position of the cam 20 corresponding to a designated cumulative emission amount.COPYRIGHT: (C)2015,JPO&INPIT【課題】正確な総吐出量を制御できる流体輸送装置を実現する。【解決手段】流体輸送装置1は、チューブ50と、突起部22~25を有するカム20と、チューブ50とカム20の間にチューブ50に沿って配設されるフィンガー40~46と、を有し、カム20を回転させて、突起部22~25によりフィンガー40~46を流体の流動方向に順次押動し、チューブ50の圧閉と開放を繰り返して流体を吐出する流体輸送装置であって、カム20に回転力を与える駆動ローター120と、カム20の回転位置を検出する検出部と、累積吐出量がカム20の回転角度にほぼ比例して増加する吐出領域Hの第1近似式と、カム20が回転しても累積吐出量がほとんど増減しない一定領域Jの第2近似式と、を用いて、累積吐出量に対するカム回転角度を演算し、指定累積吐出量に相当するカム20の回転位置に達するまで駆動ローター120を駆動させる制御部140と、を有する。【選択図】図6
