Airbus Defence and Space


Scanning DRIVE mechanism with integrated drag compensation

The Scanning Drive Mechanism consists of an upper stage that carries the instrument and a lower stage that provides the scan compensation and keeps the system drag free with respect to the spacecraft. Both drive systems are identical and driven by a brushless DC motor. An integrated slip-ring assembly provides power and signal lines for the instrument.

Features / technical details

Main dimensions – mechanism 200 x 180 mm
Total mechanism mass 6.4 kg
Mass of rotary load   kg
Temperature range   °C
Power consumption   W
Power supply   V
Lifetime minimum 4 years
Lifetime revolutions 47 x 106 revs
max torque 2.7 Nm
Earth scan angle and scan profile Customer request °



Sanning instruments

Reference customers

NOAA, Envisat, Metop