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    • 3. 发明申请
    • Drop Detection
    • 跌落检测
    • US20100259753A1
    • 2010-10-14
    • US12511583
    • 2009-07-29
    • Matthew A. ShepherdAlexander GovyadinovErick B. KinasPaul RichardsTom DeskinsSteven H. Walker
    • Matthew A. ShepherdAlexander GovyadinovErick B. KinasPaul RichardsTom DeskinsSteven H. Walker
    • G01N21/00G01N21/47
    • B41J29/393
    • In one embodiment, a drop detection method includes: moving a light source along a first side of the drop zone to illuminate drops passing through a drop zone; and, without blocking any part of the drop zone, detecting light scattered off the drops as the drops pass through the drop zone. In another embodiment, a drop detector includes: a light source on a first side of the drop zone for illuminating drops passing through a drop zone; a light detector on the first side of the drop zone near the light source and a movable carriage carrying the light source and the light detector. The light detector is exposed to the drop zone for detecting light scattered off drops as the drops pass through the drop zone. The carriage is movable along the first side of the drop zone in a direction transverse to the drop direction.
    • 在一个实施例中,液滴检测方法包括:沿着液滴区域的第一侧移动光源以照亮通过液滴区域的液滴; 并且在不堵塞液滴区域的任何部分的情况下,当液滴通过液滴区域时检测从液滴散射的光。 在另一个实施例中,液滴检测器包括:在液滴区域的第一侧上的光源,用于照射通过液滴区域的液滴; 在光源附近的液滴区域的第一侧上的光检测器和携带光源和光检测器的可移动的托架。 光检测器暴露于落下区域,用于当液滴通过落下区域时检测从液滴中散出的光。 滑架沿着垂直于液滴方向的方向可沿液滴区的第一侧移动。