The problem of volumetric pumps of the same generation is that they do not achieve the same flow at selected, certain operating points.
This Master's degree discusses the design of measurement station for measuring axial movement of the electric motor rotor and pressure fluctuations on the pump outlet. The
measurement of axial movements is designed by microoptics with an according fast frame rate camera to precision ±2 µm. The measurement of the aforementioned pressure
fluctuations is measured with a high-frequency pressure sensor.
These measurements were followed by an analysis and synthesis and explanation of pumping process
Concerning pumps of the same generation which achieved lesser flow than others, the conclusion was that the size of a single electric motor rotor hop in one corresponding revolution was the biggest at all measured operating points, according to other pumps.
The size of pressure fluctuations at the pump outlet differs at different operating points for each pump.
|
