| Summary: | The main goal of the presented paper was to design the measuring device of the external hydraulic circuit of the agricultural tractor, with the implementation of verification measurement and functionality of the device. At the same time, based on the device itself, which was verified in practice, a simulation was created in the FluidSim simulation program using the results of operational verification measurements. At the beginning of the structural design, the requirements for the electro-mechanical device were determined. This device is used for loading of the external hydraulic circuit, determination of the measuring object and flow calculation of the hydraulic pump. The verification measurement itself takes place at rated speed, constant and overpressure pressure in the tractor´s hydraulic system.
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