5 active axis
The mobile assembly formed by the turbo rotor and the shaft is
known as the rotor. The rotor is driven by the motor and held
in suspension by magnetic fields generated by electromagnets
housed in an active bearing.
The mobile rotor has 5 axes of freedom monitored by 5 active
magnetic bearings.
+
Rotor
Stator
Bearing
Electronics
Power
amplifiers
Position of
Reference
Position return
Electro-
magnet
+
Correction
+
Position
sensor
Z
X
X
Y
Y
Movements in relation to these axes are monitored by position
sensors. According to the position data recorded, the controller
corrects differences to bring the rotor back to its optimum
position, by varying the current in electromagnets
3 controlled translations (X, Y, Z)
2 controlled tiltings (X, Y)
A 200
Control loop of the pump
1/2
GB 02721 - Edition 04 - Aug 07
adixen Vacuum Products - Operating Instructions - ATP 2300 M
