Fluid's volumetric flow measuring method for use in pipeline of hydraulic system, involves carrying out additional flow diagnosis in hydraulic system and partial monitoring of magnetic-inductive flow-measuring device for error diagnosis

摘要

The method involves combining a volume flow-measuring process with an optical process for measuring of a flow speed of a fluid. The calibration of the volume flow-measuring process is periodically carried out by optical flow measurements during a hydraulic system operation to detect temporal changes of flow conditions. An additional flow diagnosis in a hydraulic system is carried out by the optical flow measurements. A partial monitoring of a magnetic-inductive flow-measuring device (3) is carried out for error diagnosis. An independent claim is also included for a device for measuring volumetric flow of fluids in pipelines.