| The flow-meter is one of the very necessary meters during industry producing.In this article, the actuality and the developmental direction was introduced.According to the theory and experiment, I proved that the resistance of Uquid would reduce along with the speed of liquid .I analyzed this circs from theory, and found the mathematics model between the velocity of flow and the quantum of resistance.In this article, according to the result of theory analysis, a experimental system and scheme was designed. After analyzed the result of experimentation, I found out the mathematics model between the speed of liquid and the variable of resistance.according to the minus- resistance characteristic, I brought forward a new way of hydrometry, found corresponding mathematics model of hydrometry, designed a metrical system and brought forward some advice of about this system, found some significative conclusion. |
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