METHOD FOR MEASURING THE DIFFERENTIAL PRESSURE STRENGTH OF A FLUID DYNAMIC STORAGE SYSTEM

摘要

The invention relates to a method for measuring the differential pressure resistance of a fluid dynamic bearing system having at least one bearing gap (20, 32) filled with a bearing fluid having at least two openings (22, 34), the method comprising the steps of: connecting a first opening (34) of the A bearing gap (20) having a first active chamber (72), wherein a pressure (Pa) prevails in the first active chamber (72), connecting a second opening (22) of the bearing gap (20) to a second passive chamber (80), wherein a pressure (Pp) prevails in the second passive chamber (80), increasing and measuring the pressure (Pa) in the first active chamber (72), repeatedly measuring the pressure (Pp) in the second passive chamber (80) as soon as an increase in pressure (Pp) in the second passive chamber (80) is detected,a differential pressure (Pd) = (Pa) - (Pp) is determined, which corresponds to a bearing resistance pressure (PL).