| 摘要 |
A flowmeter is provided having a through passageway for the flow to be measured with a fluid interaction chamber and feedback means to provide an oscillation of the flow. The frequency of this oscillation is linearly and proportionally related to volume rate of flow and is independent of all fluid properties in the turbulent range. That is to say that the frequency for a given volume flow rate will be the same for any liquid or gas as long as the flow is turbulent. Provisions are made for detecting this oscillation including means for reducing the turbulence at the detecting location and a sensor which is responsive to changes in the heat transfer rates to the surrounding fluid medium.
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