| 摘要 |
PURPOSE:To obtain a measuring device for flow rate which is easy to handle and is inexpensive, by providing a means of detecting the arrival of fluid at a prescribed level and a means for measuring the time since the inflow of the liquid until the arrival at the prescribed level in a storage vessel. CONSTITUTION:The outflow controlling valve 3 in the outflow port 1b of a storage vessel 1 is closed by the signal K2 from a control part 7, and the inflow controlling valve 2 is opened by the signal K1 to start inflow of fluid into the vessel 1; at the same time, clocking is started in the part 7. When the fluid attains a prescribed liquid level, a photoelectric sensor 6 detects a buoy 5, and feeds a signal L to the part 7. The part 7 sets the signals K1, K at ''0'' to close the valve 2 and the open the valve 3; at the same time, said part stops the clocking and feeds the required time to an arithmetic part 8. The flow rate is calculated in the part 8 and the calculated value is printed with a printer 9. The measuring device for flow rate which is easy to handle and is inexpensive is thus obtained. |
