| 摘要 |
The invention relates to a measuring system for measuring a density of a medium flowing in a process line, said medium being variable regarding its thermodynamic state, along an imaginary axis of flow of the measuring system. The measuring system comprises at least one temperature sensor that primarily reacts to a local temperature, 9, of a medium flowing past, at least one pressure sensor that primarily reacts to a local pressure, p, of a medium flowing past, at least one flow sensor that is located in a flow measuring point and that primarily reacts to a local flow parameter of the medium to be measured, and at least one electronic measuring unit that at least temporarily communicates with at least the temperature sensor, the pressure sensor and the flow sensor. The electronic measuring unit generates at least temporarily at least one density value that momentarily represents a local density, ?, which the flowing medium has in a virtual density measuring point, using the temperature measurement signal, the pressure measurement signal and the flow measurement signal. |
