Patent ID: 6644133
Filing Date: 2003-11-11
Classification: G01F

Abstract:
For a fluid transportation system having a controller for monitoring fluid flow and controlling transportation of the fluid, a method of proving a flow meter, the flow meter being operably connected to a controller and a proving loop having a known flow volume, wherein the controller monitors the fluid flow within the proving loop and executes a proving process, the method comprising the steps of:starting a meter-proving period; sensing a pulse signal responsive to a flow meter being operably connected in the path of the fluid, the flow meter generating the fluid flow, wherein the sensed pulse signal may include fractional pulse signals; ending the meter-proving period; calculating the amount of sensed pulse signals occurring during the meter-proving period, wherein the amount of sensed pulse signals may include fractional pulse signals; sensing a density of the fluid; utilizing the sensed density and the calculated amount of sensed pulse signal to calculate a flow volume of the proving loop; and, comparing the known flow volume of the proving loop to the calculated flow volume of the proving loop, wherein any difference between the known flow volume and the calculated flow volume can be utilized to improve the accuracy of the flow.