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Reaction Wheel 90


Summary

The RW 90 is a flight proven smart reaction wheel for small and micro satellites with integrated wheel drive electronics, different operation modes for speed and acceleration using model based controllers, high torque and speed stability (low noise), internal compensation of friction and time delays, provides extensive housekeepings (e.g.: measured and estimated speed, voltage, current, acceleration reserves etc.), various protective and monitoring mechanisms for: voltage and current, temperature and data processing and low level emitted vibrations, due to the mechanical design and the high level of alignments and balancing.


Specs

lifetime7 yr
torque0.015 N m
angular speed6000 rpm
maximum angular speed7800 rpm
angular momentum storage0.34 N m s
operating temperaturemin: -20 C, max: 50 C
survival temperaturemin: -30 C, max: 60 C
moment of inertia4.2e-4 kg m^2
mass< 0.9 kg
length103 mm
width101 mm
height80 mm
maximum power< 15 W
idle power< 1.8 W
voltagemin: 18 V, max: 34 V

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Last updated: 2019-07-23