Method and device for measuring the volumetric flow of a fluid

摘要

According to a method of measuring the volumetric flow of a fluid, a volume-measuring device 1 comprising a movable element, for example two or more screw spindles, emits measurement signals M derived from the cyclical movement of the element to a measuring transducer 2 which forms counting signals from the measurement signals. In order to improve measuring accuracy, the cycle frequency of the movable element is determined from the measurement signals, and stored correction factors for the respective cycle frequency are used to form and emit counting signals proportional to the actual volumetric flow. Each measurement signal is assigned a weighted volume value by the correction factor and such volume values are totaled up by transducer 2, which generates a counter signal when the sum total has reached the level of a standard volume level or multiple thereof.