| 摘要 |
A volumetric flow measuring device to measure liquid flowing in a pipe wherein a control pipe is sized for receipt in telescoping relation in the pipe and includes seal means to engage the pipe and to constrain flow through the pipe into and out of the control pipe. The control pipe is of a predetermined cross sectional area and a float member is captivated within the pipe to rise and fall depending upon the water level in the control pipe and the float includes a liquid flow velocity measuring device including a paddle wheel journaled on the float with a portion extending below it to move in response to fluid flow beneath the float and the device further includes a liquid depth measuring device to monitor the level of the float in the pipe and hence the liquid level in the pipe. The device further includes a recording device to record the level of the float in the control pipe as measured by the measuring device and, also, the flow past the float.
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