Flow meter
    1.
    发明授权
    Flow meter 失效
    流量计

    公开(公告)号:US4467644A

    公开(公告)日:1984-08-28

    申请号:US438099

    申请日:1982-12-27

    CPC classification number: G01F1/002

    Abstract: A flow meter for detecting and recording a plurality of data points representative of the depth and velocity of liquid flow in an open container. A weighted sensor has a dimpled surface to induce turbulence at low velocities to assure a substantially linear velocity characteristic. An electromagnetic velocity transducer and a single tube bubbler are engaged to the sensor to provide data which is periodically read into a cassette recorder. A microcomputer controls timing functions with respect to the collection and recordation of data within the system.

    Abstract translation: 一种用于检测和记录多个数据点的流量计,所述多个数据点表示在开放的容器中的液体流的深度和速度。 加权传感器具有凹陷表面以在低速度下引起湍流以确保基本线性的速度特性。 电磁速度传感器和单管起泡器接合到传感器以提供周期性地读入盒式录像机的数据。 微机控制关于系统内数据收集和记录的定时功能。

    Method for measuring the depth of a liquid body
    2.
    发明授权
    Method for measuring the depth of a liquid body 失效
    测量液体深度的方法

    公开(公告)号:US4388827A

    公开(公告)日:1983-06-21

    申请号:US212940

    申请日:1980-12-04

    CPC classification number: G01F23/14

    Abstract: A method for detecting the depth of a liquid body. A source of pressurized gas is engaged to a weighted sensor by means of a single elongated tube. The sensor is positioned at the bottom of the liquid body. A solenoid valve, which regulates the flow of gas in the tube, is periodically opened to provide a pulse of overpressure which exits the underside of the sensor in a pressure-equalizing stream of bubbles. After a brief, predetermined settling time, a reliable pressure/depth indication is obtained from a transducer in communication with the single tube.

    Abstract translation: 一种用于检测液体深度的方法。 加压气体源通过单个细长管接合到加权传感器。 传感器位于液体的底部。 周期性地打开一个调节管内气体流量的电磁阀,以提供一压力均衡的气泡流离开传感器下侧的超压脉冲。 在短暂的预定建立时间之后,从与单管连通的换能器获得可靠的压力/深度指示。

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